A Stone Age circular monument in England is even older than Stonehenge, raising the possibility that Stonehenge's creators used it as inspiration, a new study finds.
When researchers radiocarbon-dated artifacts from the large monument, known as Flagstones, they found that it dates to about 3200 B.C. — meaning it's about 200 years older than Stonehenge. Previously, archaeologists thought Flagstones was the same age as the earliest stages of Stonehenge, which was built and reconfigured over the centuries. The researchers published their findings March 6 in the journal Antiquity.
