Professor Vince Gaffney standing in Warren Field, the site of the world's oldest known calendar
A diagram showing how the pits are aligned and how they track the phases of the moon
An artist's impression of Warren Field as it may have looked at the time the calendar was being used by hunter gatherers
While we take calendars for granted these days, the invention of systems that track time stands as one of humanity's most monumental achievements ... in more ways than one. Long before written calendars emerged, monuments were used to measure time. Now a crude but working "calendar" discovered in Warren Field, Scotland, suggests that these time measuring monuments may have been developed much earlier than previously thought. Archaeologists believe the Warren Field calendar was created by hunter gatherers around 8,000 BC, making it the world's oldest calendar discovered to date by a significant margin.
Other Images from this Gallery