Antiquity, December 1st, 1993
Initial radiocarbon determinations from monumental tombs in Brittany suggested that the earliest of these passage graves were around 6,000 years old. Alhough the figure was later corrected to 4,500 years old, this still made them older than the Egyptian pyramids. This contention has been open to debate as many scholars believe that the dating process used was inaccurate. New radiocarbon studies on human bones in the graves show that the passage graves were in use as early as 4700 BC.
New radiocarbon determinations from northwest France further contribute to the proposition -- 25 years old now...
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