eionmac (949755) writes "The BBC in UK http://www.bbc.co.uk/news/uk-scotland-north-east-orkney-shetland-23286928 publishes news that Archaeologists believe they have discovered the world's oldest lunar "calendar" in an Aberdeenshire field. Excavations of a field at Crathes Castle found a series of 12 pits which appear to mimic the phases of the moon and track lunar months. A team led by the University of Birmingham suggests the ancient monument was created by hunter-gatherers about 10,000 years ago. The pit alignment, at Warren Field, was first excavated in 2004. The experts who analysed the pits said they may have contained a wooden post. The Mesolithic "calendar" is thousands of years older than previous known formal time-measuring monuments created in Mesopotamia. The analysis has been published in the journal, Internet Archaeology"