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Science

When Were the Americas Populated? 259

evil agent passes along an article in Scientific American reporting that new radiocarbon dating techniques have cast doubt on the accepted story of how the Americas were populated. In the traditional view, "[M]igrants out of northeast Asia slipped into the Americas bearing finely shaped stone projectiles, so-called 'Clovis points,' after the town in New Mexico where they were first uncovered. This Clovis culture rapidly spread throughout the empty continents and by 1,000 years after their arrival had reached the southernmost tip of what is now South America, making them the original ancestors of indigenous Americans." The new dating of Clovis sites suggests that "Clovis" was not a people, but rather a technology. That is, a new and more efficient method of making arrowheads for hunting spread rapidly through a pre-existing population in both North and South America, over at most 350 years.
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When Were the Americas Populated?

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  • by Anonymous Coward on Sunday February 25, 2007 @06:18AM (#18142070)
    The Americas were populated by English pilgrims. That's why we have thanksgiving. Never mind about those damn injins.
    • by BakaHoushi ( 786009 ) <Goss DOT Sean AT gmail DOT com> on Sunday February 25, 2007 @07:47AM (#18142400) Homepage
      To paraphrase America: The Book:
      "Some people say that Columbus was not the first to discover America. They say that the vikings and Chinese had been to the Americas for at least a thousand years before Columbus. Others say you can't discover a continent that's already inhabited by an entire race of people. These people are communists. Columbus discovered America."

      So, since the continent was not officially "discovered" until about 500 years ago, we can say anyone there before that "doesn't count."
      • It doesn't matter that aboriginals lived in pre-Columbian America, because they didn't know where they were in context of the larger world. They were completely unaware that the rest of the world even existed. (Ironically, Columbus himself was unable to tell where he was, because he thought he was in Asia). Only the Europeans could integrate America into a geographical world-view. They could make maps and come and go repeatedly. They were able to integrate America into world trade. Hernan Cortes (conquered
    • by tealwarrior ( 534667 ) on Sunday February 25, 2007 @09:33AM (#18142832)
      There is a PBS Nova show on this topic which discusses several alternative theories to the Clovis first one. America's Stone Age Explorers http://www.pbs.org/wgbh/nova/stoneage/ [pbs.org] It was recently airing (again) so you may be able to catch it again.
    • Oh really? (Score:2, Interesting)

      Why is it that the further south you go into South America, the older the civilizations appear to be? Seems like they keep finding all kinds of ancient ruins there. Now what is the likelihood that people would wander from the north all the way down there before creating the civilizations they created? Could the Americas have been populated from Antarctica instead, before the polar shift? Prolly not, I guess there were no humans back then, but still...
      • Why is it that the further south you go into South America, the older the civilizations appear to be? Seems like they keep finding all kinds of ancient ruins there. Now what is the likelihood that people would wander from the north all the way down there before creating the civilizations they created? Could the Americas have been populated from Antarctica instead, before the polar shift? Prolly not, I guess there were no humans back then, but still...

        Actually I wonder why this article says nothing about

  • old news (Score:3, Interesting)

    by Anonymous Coward on Sunday February 25, 2007 @06:24AM (#18142088)
    Isn't this just the last gasp of the clovis-first proponents finally dying out? I have seen quite a number of documentaries about some archaeologist or other digging up evidence of 'pre-clovis' people for a number of years now. In each of the documentaries we hear about how the archaeologist is derided by the old guard who keep saying 'no, there couldn't have possibly been anyone here earlier'.
    • Re: (Score:3, Insightful)

      by TapeCutter ( 624760 )
      The thing I find odd is that most of the advanced civilizations were in Mexico and S. America, rather than from the North. Aside from the Incas and Myan's, there is also good evidence the Amazon was once crisscrossed with roads and towns. Civilizations pop up in the most bizzare places, Easter Island anyone? [abc.net.au]

      Why is it so hard to belive these people had been trading in ideas and customs for mellenia, then one day someones idea took the traceable form of a clovis and spread rapidly through an existing netwo
      • Re:old news (Score:5, Informative)

        by mrvan ( 973822 ) on Sunday February 25, 2007 @08:10AM (#18142486)
        I can recommend http://www.amazon.com/Guns-Germs-Steel-Fates-Socie ties/dp/0393317552 [amazon.com] :

        His main answer has to do with food production: North America had hardly any good domesticable crops, so the most populous and advanced North American civilization (in the Mississipi valley) could only emerge after the slow spread of Mexican corn and beans across the deserts north of the Aztec homeland, which gave them very little time to 'prepare' for the European invasion.
      • Re: (Score:3, Interesting)

        The thing I find odd is that most of the advanced civilizations were in Mexico and S. America, rather than from the North.

        From what I have read, the North was less suitable for large, settled-down civilizations, in terms of food sources and climate. This led to the nomadic lifestyle of the population in the North. Since in general nomadic cultures produce less in the way of technological advances (less free time, basically), this would account for much of the difference.

        There were also simply less peop

        • Then how come Europeans managed to settle and build cities almost immediately?
          • Because they brought the technology from their society that didn't have to develop in that environment, obviously.
          • Re:old news (Score:4, Insightful)

            by Kadin2048 ( 468275 ) <slashdot...kadin@@@xoxy...net> on Sunday February 25, 2007 @01:12PM (#18144304) Homepage Journal
            They brought with them European technology and domestic animals. When you have draft horses or oxen, suddenly farming in North America is a whole lot more practical than it is when you just have your own to hands and some light tools. One guy and an ox can put a few acres into production, which would probably take a whole village otherwise.

            c.f. Guns, Germs, and Steel.

            The North American natives just got a cruddy piece of real estate to bootstrap a civilization on. They managed to do pretty well in some places, but in the end they just couldn't compete with the Eurasians.
        • Re:old news (Score:5, Insightful)

          by gobbo ( 567674 ) on Sunday February 25, 2007 @02:43PM (#18145068) Journal

          From what I have read, the North was less suitable for large, settled-down civilizations, in terms of food sources and climate. This led to the nomadic lifestyle of the population in the North. Since in general nomadic cultures produce less in the way of technological advances (less free time, basically), this would account for much of the difference.

          Assumption: nomadic lifestyle = less time. Not necessarily true, moving around frees people from the drudgery that is agriculture, and nomads tend to work on elaborate ceremony and narrative. How would you like to work only 26 hours per week? It does mean they're less materialistic, since stuff is a liability. That outlook means that advanced camping gear is good enough technologically, and pretty comfortable. Development occurs in other ways.

          Assumption: unified population and cultures. Not true, considerable linguistic and cultural variety in N.A., including sedentary cultures in the Pacific Northwest and some desert regions (one tied to abundant food outside the front door, the other tied to marginal agriculture). Blame the difference in development on the horse, flux of empires, and specialization derived from large city societies.

      • Re:old news (Score:4, Informative)

        by nicklott ( 533496 ) on Sunday February 25, 2007 @10:46AM (#18143260)

        The thing I find odd is that most of the advanced civilizations were in Mexico and S. America, rather than from the North.

        That's just because the ones in the North aren't [wikipedia.org] so famous [wikipedia.org]...
      • by Scrameustache ( 459504 ) on Sunday February 25, 2007 @01:38PM (#18144516) Homepage Journal

        The thing I find odd is that most of the advanced civilizations were in Mexico and S. America, rather than from the North.
        If the first humans came from the north through asia, then the first people were nomads, with a lifestyle that is still surviving in remote parts of asia (mongols still ride and herd semi-tamed horses, people in siberia still stalk deer herds). These people found massive herds in north america, and they came from people who had been hunting from massive heards for thousands of years, so they kept doing what worked. The beasts looked a little different, but they gave Perfectly Normal Meat.
        Being nomads, these people spread down south, where there were deserts and mountains and jungles, but no great herds, so they had a choice: improvise, or walk all the way back to where it was cold and women covered themselves non-stop in great leather coats with the fur on the inside.
        In the south, it was warm, and boobies were flying freely... so the paleogeeks did their thing. To advance civilization, of course.
        • If the first humans came from the north through asia,

          Ah, but the first people in the Americas didn't come from Asia acroos the Bering land bridge into the Americas. Monte Verde [wikipedia.org] in southern Chile, and fathest south you can get in the Americas, is dated 12,500 BP (Before Present) which means it predates the Bering Land Bridge [wikipedia.org]. The Bering Land Bridge formed around 12,000 BP.

          Falcon

    • Re:old news (Score:4, Interesting)

      by nicklott ( 533496 ) on Sunday February 25, 2007 @10:29AM (#18143134)
      Proving that you don't need to be right to have a populist theory, just better at getting yourself on the History Channel...

      IIRC the pre-Clovis sites are a few ripples spotted here and there and most have controversial dating evidence available, where as the Clovis evidence is like a tsunami of archaeology. While there may well have been pre-Clovis people this dating evidence (and from the article that's all it appears to be) simply confirms the date of the sites and does little to add anything of merit to the debate. The argument that it took a maximum 350 years to spread and this is "too fast" for a settlement is spurious. Why is it inconcievable that it "only" took 350 years to get from Alaska to Tierra del Fuego? As it's about 8000 miles at most you would need to drift south at a leisurely 20-30 miles per year. Now this isn't feasible for an agricultural, settled people, but these were hunter-gatherers (as evidenced by the Clovis points) and could conceivably have done their year's quota in a single hunting trip. I doubt getting that far would have been much of a struggle, especially when most of the fat [wikipedia.org], stupid [wikipedia.org] and tasty [wikipedia.org] animals were in South America.

      While it seems very likely that there were people in South America before the Clovis people, they were probably only there in very small numbers, whereas the Clovis people were clearly very numerous indeed and seem to be the first meaningful inhabitants.

      BTW, it occcurs to me that if Clovis points were a technology that spread amongst an existing people (rather than the spread of the people with the technology) then neighbouring tribes/families/whatever would have to have been on good terms for it to spread. Anecdotally at least it would seem from what is known of tribes who were recently in this sort of situation that they tend not to be particularly friendly with their neighbours.

      • BTW, it occcurs to me that if Clovis points were a technology that spread amongst an existing people (rather than the spread of the people with the technology) then neighbouring tribes/families/whatever would have to have been on good terms for it to spread. Anecdotally at least it would seem from what is known of tribes who were recently in this sort of situation that they tend not to be particularly friendly with their neighbours.

        Not necessarily. If you look at the spread of bronze-making technology

    • Re:old news (Score:4, Informative)

      by mothlos ( 832302 ) on Sunday February 25, 2007 @10:45AM (#18143256)

      In the archaeological world Clovis population theories have been dead or dying for at least 5 years. Isotopic dating of human dwellings in the Americas throughout the 90s as well as single parent DNA research have been available for years that show human populations were present and separated from Asian populations thousands of years before the glacial corridor was a possibility. This doesn't even mention that Clovis technology likely didn't even come from Asia.

      The only thing that Clovis had going for it is that the theory neatly solved several issues. Since archaeology at that time was not as sophisticated with its techniques and the lack of a good selection of sites, the people digging stuff up just noticed that after about 13,000 years ago they stopped finding these spear points when they found a large mammal skeleton. Also, within a short period after this tool showed up, the large mammal population of the Americas seemed to have died out. In addition, climatologists at the time came out with a breakthrough theory that massive glaciation had lowered sea levels significantly allowing for the Bering Straight land bridge. This convergence of new information seemed like the perfect way to integrate the known information at the time. Unfortunately, except for the coincidence, they didn't have a shred of evidence it actually happened that way.

      So, like so much "news", this is just an old hat. Carry on.

  • Modern humans... (Score:5, Interesting)

    by MichaelSmith ( 789609 ) on Sunday February 25, 2007 @06:30AM (#18142102) Homepage Journal

    ...have been around for 100's of thousands of years and they are not stupid. Who is to say that 60000 years ago somebody from Indonesia could not possibly have seen most of the world in a lifetime, if they had so desired? There wouldn't have been any evidence of small scale migration which modern archeologists could find, yet the written history is based only on mass movements of population.

    TFA ends with I think there's enough evidence now to say that there were pre-Clovis people in the Americas."

    Who is to say that it hadn't been happening for several times the 25000 year time scale they are talking about?

    • by marcello_dl ( 667940 ) on Sunday February 25, 2007 @06:43AM (#18142150) Homepage Journal
      > [modern humans] have been around for 100's of thousands of years and they are not stupid.

      How do you explain "windows being the dominant OS (yet)", then? Just curious.
      • Re: (Score:2, Insightful)

        by Zeinfeld ( 263942 )
        How do you explain "windows being the dominant OS (yet)", then? Just curious.

        That should be obvious.

        UNIX is still in the remedial class as far as usability goes. Apple is an entirely proprietary scheme forcing you to buy hardware and software from the same vendor at outrageous prices.

        The value of a machine is directly proportional to the amount of software it can run. So there is a selection bias towards already dominant O/S.

        • The value of a machine is directly proportional to the number of distinct tasks that an average user can realistically accomplish with it.

          There, fixed that for you.

          Having a word processor and a spreadsheet adds a definite amount of value to a platform. Maybe even two word processors and two spreadsheets. But the value of additional pieces of software to do the same thing rapidly diminish. The value is in the things you can do with the tools, not with the number of tools themselves.
        • The value of a machine is directly proportional to the amount of software it can run. So there is a selection bias towards already dominant O/S.

          That phrase may have been valid in the 80's or early 90's, but I don't think it holds the same value right now. Web browsing / e-mail reading are the main purposes for which people buy computers these days, and those task are done mostly using open protocols that don't rely on a specific computer architecture or operating system.

          Applications that were once only

      • Re: (Score:3, Funny)

        by tchdab1 ( 164848 )
        Evidence is emerging that use of clovis point technology was strictly limited to tribes and individuals who could pay periodic tribute to a cult of shamans located in the Pacific Northwest.

        Stela have been decoded showing a large and round-headed cult leader foaming at the mouth and shouting "Clovis! Clovis! Clovis", whipping the masses into a frenzy, and paying off spear-makers to keep them from making spears without clovis points.
        They further cemented their status by periodically introducing pointless "imp
    • Re: (Score:2, Interesting)

      by mrvan ( 973822 )
      Well, it's a pretty long boat trip! We do now that people from Indonesia (or rather SE-Asia by way of Indonesia) island hopped all the way to Hawaii and Easter Island, but it took them until around 500 AD to get there. Also, I think there is some genetic (mtDNA) evidence that most native American people share a common heritage with each other and with Siberian people. Of course, it could be that the America's were fully populated before the arrival of Siberian people, and that they have been completely r
      • Well, it's a pretty long boat trip! We do now that people from Indonesia (or rather SE-Asia by way of Indonesia) island hopped all the way to Hawaii and Easter Island, but it took them until around 500 AD to get there.

        Then again, read last week's New Yorker artical about those 3 Mexican fishermen who drifted for 9 months, ending up in the Phillipines. They did a good job of developing survival techniques, and I'll grant you the present-day drift patterns might not support a drift from West to East, but it
    • Re: (Score:3, Interesting)

      Comment removed based on user account deletion
    • Re: (Score:3, Informative)

      by Legion303 ( 97901 )
      Hundreds of thousands of years? Modern humans showed up about 50,000 years ago, and ancient homo sapiens only branched away from other hominids about 150K years ago.
    • ...have been around for 100's of thousands of years and they are not stupid. Who is to say that 60000 years ago somebody from Indonesia could not possibly have seen most of the world in a lifetime, if they had so desired?

      Who is to say? Anyone who has actually studied the matter. Sailing across the ocean is hard - and unpredictable. Walking across an unknown continent equally so.
    • Well, some big issues would be navigation (not even a simple compass, let alone an astrolabe. You can only use the north star in the northern hemisphere, so even thata is out of the question for a decent chunk of the world. Beyond that, it would be difficult to deal with the wide variety of environments that one would come across (good luck having the native to Indonesia cross the Himalayas or find his way in the Sahara. It may not have been "impossible", but it would be highly improbable.
  • If we look back at our cities in 5000 years we'd conclude that native africans built ships and came to the americas and built up a great expanse of technology and culture in what we now call "inner cities". Obviously that's not how it happened.

    Dumb people have more children than smart people, especially when there is a natural abundance of food and shelter and intelligence offers no real reproductive benefit. So I don't think it matters one bit when the americas were populated. It is the sheeple that inheri
    • by Ingolfke ( 515826 ) on Sunday February 25, 2007 @06:42AM (#18142144) Journal
      Dumb people have more children than smart people, especially when there is a natural abundance of food and shelter and intelligence offers no real reproductive benefit.

      That is a relatively modern trend. One, many previous cultures valued children and gained both productive and prestige benefit for large families. Two, effective contraceptives are relatively modern inventions. Three, the social and economic mobility of those who are "not dumb" is also a relatively modern trend. In dictatorial and feudal societies in which education and wealth is controlled by a few intelligence is less likely to be rewarded.

      If we look back at our cities in 5000 years...
      I agree with you here and think you're making a great point. We place a high level of certainty on conclusion drawn from a limited set of data, and as you pointed out the conclusions are really rather useless anyway.
  • by gd23ka ( 324741 ) on Sunday February 25, 2007 @06:40AM (#18142138) Homepage
    If you follow the work of Michael Cremo you will learn that modern human skeletons
    have been found in strata deposited millions of years old and all over the world.

    http://www.mcremo.com/cremo.htm [mcremo.com]

    His book "Forbidden Archaeology" is a huge tome discussing hundreds of sites where
    anomalous findings challenge (rip apart) todays dogmas in the field and it is also
    an interesting read to see how the religion of western science preserves the purity
    of its creed :-)
    • Re: (Score:3, Funny)

      If you follow the work of Michael Cremo you will learn that modern human skeletons have been found in strata deposited millions of years old and all over the world.

      Yeah in fact just down the road from here is a place where there are thousands of bodies buried in strata at least 10000 years old: about two metres down.

    • Re: (Score:3, Funny)

      by TapeCutter ( 624760 )
      "If you follow the work of Michael Cremo you will learn that modern human skeletons have been found in strata deposited millions of years old..."

      ...researchers also found a car tyre, a double bed matresses, and staggering 73,891 plastic bags. More news at 11:00.
    • Re: (Score:2, Funny)

      by Nirvelli ( 851945 )
      What about Pangaea? I've always thought that it could've just all been populated, and then, as it split, there were people on all the different parts. Though, I invented that theory in like 2nd grade when I first learned about Pangaea, and if that were the case we would probably be finding skeletons in Antarctica or something. If we start finding frozen skeletons in Antarctica, I win.
      • I think that the timescales involved in the splitting up of the continents from Pangea, and the evolution of humans, are totally different.

        The Pangea breakup was going on back at around the same time the dinosaurs were in business; definitely pre-humans. According to WP [wikipedia.org], Pangea (or Pangaea) broke up between 55 and 100 million years ago, in the Cretaceous. Modern (genus Homo) humanoids didn't appear until around 2.5 million years, in the Pliocene.

        I suspect that by the time the first proto-humans stood up and
    • by bytesex ( 112972 )
      ]] If you follow the work of Michael Cremo you will learn that modern human skeletons
      have been found in strata deposited millions of years old and all over the world.

      Yeah. Because obviously, more than a hundred years ago people couldn't dig to bury their dead - they just left 'em where they fell.
    • Re: (Score:3, Interesting)

      by sgage ( 109086 )
      With all due respect, Cremo is a wack-job^H^H^H rather fringe figure, and not really a credible archaeologist. He's a student of Indian religion, and believes in a "Vedic" theory of the origins of life vs. Evolution. I.e., scriptural revelation.

      His articles are published in magazines like "Atlantis Rising" and "Back to Godhead", and he wrote chapters for the classic "Chant and Be Happy!".

      Science is not perfect, nor complete, nor will it ever be. But talking about "all the dishonesty in science", and using t
      • by ScrewMaster ( 602015 ) on Sunday February 25, 2007 @08:05AM (#18142470)
        Besides, once you've already decided how life originated, you are pretty much limited in how things play out in your own particular "theory". And if this guy were correct, there's a massive multinational conspiracy to cover up the "truth", a wall of silence perpetuated for centuries and only finally penetrated by Mr. Cremo's dedication and intellect.

        If there were ever a reason to repair the education system in this country, this is it. Unless ignorance really is bliss, and we've all been missing something all these years.
      • Re: (Score:2, Interesting)

        by gd23ka ( 324741 )
        Oh nooo... I'm not going to make it _this_ easy for you. There is little in
        Michael Cremo's factual research itself for me to defend and stand up for
        because I don't have the foggiest whether his findings are true or not.
        I am not an archaeologist nor a geologist. I'm just saying that it's there,
        it's interesting and chances are that some of it may actually be correct.

        What I personally find interesting in his book is how he details to what
        length people go in the field to discredit the deviant author or even tam
        • Comment removed (Score:5, Insightful)

          by account_deleted ( 4530225 ) on Sunday February 25, 2007 @08:36AM (#18142590)
          Comment removed based on user account deletion
          • Re: (Score:2, Interesting)

            by gd23ka ( 324741 )
            As far as being able to _verify_ the theories and findings of Michael Cremo is concerned I
            find myself way out of my waters to have much of an opinion on that score. So what I do is I
            limit myself to pointing out his research and that I find his research and his findings
            interesting, especially in light of the growing body of evidence like the pyramid in Bosnia
            I mentioned before. I try to reserve judgment on the credibility of Cremo's work because my
            professional background does not prepare me for the task of e
        • by CmdrGravy ( 645153 ) on Sunday February 25, 2007 @09:00AM (#18142686) Homepage
          Have you read Von Daniken ? I definitely recommend "The Chariots Of The Gods" since he also pretty much single handedly destroys the modern archaelogical conspiracy of silence surrounding the facts about how the Gods used their advanced space-faring technology to live amongst us across the globe until a series of unfortunate yet totally ( locally ) cataclsymic events removed most traces of their presence except for the few totally conclusive tell tale hints left strewn from Machu Pichu to the Egypt for dedicated super-archaelogists like Erik to uncover.

          Also Lyall Watson fights the good fight on a number of fronts against an array entrenched and protectionist theories espoused by not only archaeologists but also geologists, physicists and scienctific dogma in general.

          Hancock, is the new guy on the block but he is able to link all the good work undertaken by the likes of Von Daniken and Watson and prove that these space-faring super civilizations came from Orion and he can also prove not just the exact date but the exact second, minute, hour and day that they were all wiped out by the various utterly catastrophic yet strangely localised disasters which managed to wipe them out utterly so quickly they didn't even have time to jump back in their spaceships.

          Obviously they did have enough time to build a series of enigmatic and utterly conclusive monuments throughout the world to speak to future super-archaelogists such as Mr Hancock, Bauval, Daniken and Watson and tell of the terrible catastrophe they could see coming and how it would wipe them out utterly and how this caused them to gather every member of their super civilisation, complete with houses, buildings and strange alien flying machines directly over the catastrophe, disable their spaceships and entrust the vast learning and knowledge of their super-society to a few, scattered enigmatic encoded monuments.

          I can't wait for the next valiant defender of the true science to take up the torch and carry on where Hancock left off.

          • by nido ( 102070 )
            There's also the Gods and Spacemen series. Gods and Spacemen in the Ancient West, Gods and Spacemen in the Ancient East, Gods and Spacemen in the Ancient Past, Gods and Spacemen in Greece and Rome, Gods and Spacemen in Ancient Israel, Gods & Spacemen Throughout History, and maybe some others. Ingo Swann says he tracked W. Raymond Drake down in the 60's or 70's, and that this author had learned 9+ languages so that he could read the primary texts.
          • You must believe that the pyramids are landing pads for alien spaceships.
            • If there is one thing that Von Daniken has taught me it's that belief has nothing to do with science so no, I don't belive that they are landing pads for alien spaceships. Rather, through following the lengthy scientific daisy chain of Danikens faultless research and evidence I can say that with some ( minimal but necessary ) speculation to join some of the strands together Von Daniken forges an almost unbreakable chain of logic to show how the pyramids are in all likelyhood simply the exposed tips of the r
        • by AusIV ( 950840 )
          You might be interested in James P. Hogan's Kicking The Sacred Cow, if you can find a copy. Hogan discusses scientific dogma in areas such as global climate change, evolution, HIV, the theory of relativity, the origin of the universe, and a few others. The idea behind most of them is that modern science has ignored some significant data because it either doesn't fit with the current "scientific" understanding, or bureaucrats have threatened their funding. I'm not saying I believe Cremo is correct, I think i
    • I'm sorry, but, as far as historical accuracy goes, that man comes in right after a velvet painting of the Black Jesus.
    • This is the guy who once used the WEekly World News as a source. He's a nut and a fraud.
  • Slashdot got scooped by Nova [pbs.org] .
  • by joshv ( 13017 ) on Sunday February 25, 2007 @07:28AM (#18142332)
    I think the idea that humans can only travel long distances over land should have been disproved by the population of Australia and the Pacific islands. There is no need for a land bridge to explain the population of the Americas.

    There is now more than enough evidence to support the idea of a pre-clovis population in America. Due to the timing of glaciation, this requires these populations to have traveled via the ocean, either along the glaciated Alaskan coast, or along the edge of the arctic ice cap from Europe. Possibly both.

    Though modern humans find this environment so impossibly inhospitable they cannot imagine how anyone could possibly survive there long enough to allow a population to migrate several thousand miles, they are thinking only of the glacial desert of ice. The sea however was rich with food. Humans have always followed the food. There are Inuit populations that until recently, fed themselves quite nicely hunting in seas full of pack ice, in boats made of whale bone and seal skin. I see no reason there why self-sustaining populations of humans couldn't have lived on the ice, feeding on the ocean, and slowly spreading along the coast until they found land (America).
    • by mrvan ( 973822 ) on Sunday February 25, 2007 @08:25AM (#18142540)

      There is now more than enough evidence to support the idea of a pre-clovis population in America. Due to the timing of glaciation, this requires these populations to have traveled via the ocean, either along the glaciated Alaskan coast, or along the edge of the arctic ice cap from Europe. Possibly both.

      That is true, but if you look at the date of 'colonization' by Austronesian people of these pacific islands, you will notice

      1. Sailing large distances is difficult. It took them until 3000/2000 BC to get their island-hopping act together and start colonizing these islands. By this date America was well populated
      2. Sailing large distances takes time. While it took a couple centuries up to one millenium to fill America, it took about 4000 years to colonize all islands from Indonesia to Easter Island / Hawaii
      Combined: this proves that sailing between continents is quite possible but also very difficult, and cannot explain the people living in America around 10,000 BC.
      • by joshv ( 13017 )
        Even lacking a land bridge, during the ice age there was no need for a long distance sea voyage. If these populations moved along the edge of the ice, they probably lived their entire lives along the edge of the ice. I doubt the entire voyage to America was accomplished even within it a single generation. It may have taken centuries, as population pressure slowly pushed people farther along the ice's edge in search of virgin hunting grounds. Their camps probably moved at most a few miles at a time, as al
    • the other thing we need to get over is the idea that one population came in and spread to all the Americas. (consciously or unconsciously trying to mirror the out of Africa theory). Localized populations may have been established several times in several places, but then failed or were wiped out by or assimilated with later arrivals leaving confusing or no genetic traces, but artifacts that taunt whatever the current time-line theory is. Archeology and geneticists have still not worked out their interface i
      • by joshv ( 13017 )
        I think some of the recent genetic testing backs this idea up. Many waves of migrating, at different times, possibly even from Europe, and most certainly before Clovis.

        I don't know why our default scientific assumptions in such matters always err on the simplistic side. We have the same problem with 'out of Africa'. No there was not one single monolithic migration out of Africa. The actual history of human migration is probably very complex, and certainly not subject to the simplifying assumptions of sc
    • I went to a conference years at which the head archaeologist of the Mashantucket Pequots in Connecticut spoke. He claimed that recent, casino-funded digs in the area had uncovered skulls which seemed to be much older than the 'land bridge' theory would allow for (about 30,000 years ago). The formation of the skull was also much closer to skulls found in France than anything being found locally. He didn't discount the possibility of people cross the Bering Strait, but suggested that more than one waves of mi
  • by 140Mandak262Jamuna ( 970587 ) on Sunday February 25, 2007 @08:28AM (#18142556) Journal
    There were people in America using different kinds of arrowheads fashioned from flint. Then, some 11000 years ago, near where Albuquerque, New Mexio would be, an arrowhead maker named Beak Doors created a kind of arrowheads for his company Microhard and aggressively promoted it. Many of his detractors claimed he was using illegal methods and that his arrowheads were not superior to other competitors. But Corporate tribals never learned to distinguish between true interoperability and Microhard compatibility. Microhard arrowheads eventually achieved vendor-lock in the tribal societies. That is how what we now call clovis points became ubiquitous in the Americas.
  • by bigbigbison ( 104532 ) on Sunday February 25, 2007 @10:03AM (#18142978) Homepage
    On PBS there was an episode of Nova all about this. http://www.pbs.org/wgbh/nova/stoneage/ [pbs.org]
  • The view that the Americas were populated by people carrying Clovis points 11,000 years ago has been steadily losing ground for at least the past decade, if not two. Pre-Clovis archaeological sites were discovered as far back as 30 years ago. Some findings suggest that the populating of the Americas was not one migration event, but many, with some coming along the Bering land bridge, some from along the coast and even some from Europe. This is simply one more nail in the coffin for the old Clovis viewpoi
  • before the Mormons jump on this to support their "lost tribes of Israel" mantra?
  • by rinkjustice ( 24156 ) <rinkjustice&NO_SPAMrocketmail,com> on Sunday February 25, 2007 @05:41PM (#18146542) Homepage Journal
    For many people including myself, The Book of Mormon (a volume of holy scripture comparable and compatible with the Bible and an ancient record) answers the question "when was the Americas populated". The Americas were populated by one group who left Jerusalem circa 600 B.C, led by a man named Lehi, who branched out to become the Nephite and the Lamanite peoples. The other group, known as the Jaredites, came much earlier when the Lord confounded the tongues at the Tower of Babel.

    You can read about it yourself by going to Mormon.org [slashdot.org] and requesting a free copy of the Book of Mormon for yourself, and you can learn more about the evidences of the Book of Mormon at Jeff Lindsay's website [jefflindsay.com].
  • by edwardpickman ( 965122 ) on Sunday February 25, 2007 @06:15PM (#18146778)
    There's been evidence of earlier migrations for a lot of years the evidence was always dismissed as anomolous and obviously had another explaination. Something that is rarely mentioned is the fact that it was far easier to get here 16,000 to 20,000 years ago from either Europe or Asia. Sea levels were 250' lower and I believe they were 300' lower 30,000 years ago. This extends the coastline hundreds of miles reducing the distance they'd need to travel. There was even the potential of following the ice sheet. Fishing was excellent and there were even mamals to hunt. The ice sheet would have been at sea level in places allowing for landfall. There's been evidence for early migrations as far back as 35,000 years or more ago. There's also an unspoke problem with South America seeming to have been potentially colonized first. The very oldest evidence of humans in the americas has been found in South America. No one is sure why but there is a belief that pacific islanders managed to make it to South American. Part of the problem tracing the migration is it seems several of the migrations died out leaving no DNA traces. Unless bones are found it's going to be hard to prove to anyone's satisfaction. Why isn't more evidence found? A guess would be the earlier migrations lacked the tecnology to survive well in the americas that were still ruled by megafauna. Clovis points were fairly recent if there were migrations going back 35,000+ years. The earliest people may have never numbered more than a few hundred to a few thosuand making them suseptible to desease and droughts. It's not hard to kill off a population of a few thousand. Clovis technology allowed them to grow into the millions allowing humans to weather major die offs. There was even an extreme idea floated about aboriginals making it from Australia to South America by way of Antarctica. This borders on impossible because they never were seafarers and the strait between Antarctica and South America was barely passible by 16th century Europeon ships. Dugouts and skin ships would have zero chance of surviving a crossing.
  • by niktemadur ( 793971 ) on Sunday February 25, 2007 @10:59PM (#18148886)
    There's a series of posts up this thread that touch on the subject, yet I want to separate my post from that particular context and start fresh from another angle.

    Why were the american cultures 'discovered', while they had no inkling of other cultures across the oceans, nor their place in the panoramic view of the world?

    Because they were not seafarers. The question I keep repeating to myself is: Why was that?

    The reason why the ancient phoenicians, greeks, etc, set sail, was gigantic and in front of their noses: The Mediterranean Sea, which represented the shortest way between two points of commerce in a concave land: a straight line. Same with the norse people: The Baltic Sea.

    Middle eastern cultures also developed seafaring capabilities, spanning the area from India to the eastern African coast.

    Much more intriguing are the chinese, as their land is convex with respect to the ocean, so there is no obvious short term advantage to develop seafaring capabilities, yet they did have a majestic fleet of immense junks for a short period of time, during which they were gazing waaay over the horizon, and with noble intentions to boot.

    In fact, it seems that in every region of the world, for one reason or another, civilizations set to the oceans with commerce and/or conquest in mind, yet excepting the colonization of islands in the Gulf Of Mexico, once settled, the pre-columbian people seem to have completely lost whatever sea legs they ever had.
    The Gulf Of Mexico is concave, commerce between Yucatan, Veracruz and Florida seems like an obvious thing. Olmecs, Toltecs, Mayans, Aztecs, among others, inhabited the general basin area, yet while they navigated lakes, rivers and fished close to the coast, show no evidence of technology for longer term sea travel. What the hell happened? Why that gigantic, eventually fatal blind spot?

    Maybe, just maybe, it's because of the fact that the Gulf Of Mexico, for half of the year, is smack in the center of hurricane alley. Maybe the Mayans, for example, tried and had their fleet decimated one time too often, then completely scrapped the endeavor. Yet I've read nothing on the matter, I've never stumbled upon pre-columbian academics even discussing the matter, so if anybody knows or has any ideas, please post! Thanks.

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