Debunked. In 1958, archaeologists summoned a diamond-cutting business to help reinforce a fallen Stonehenge trilithon—the site’s signature structure consisting of two large vertical stones topped by a horizontal one. Three holes were bored into one of the stones so it could be filled with supportive metal rods, which, in turn, produced three cores from the interior of the stone. Robert Phillips, an employee of the diamond-cutting company, decided to take one of the cores back with him when the job was complete.

For six decades, Phillips proudly held onto his piece of Stonehenge, displaying it in his office and later bringing it with him when he moved from the United Kingdom to the United States. But on the eve of his 90th birthday, according to the BBC, Phillips decided it was time to return the fragment to its original location.

Phillips’ two sons brought the core from Florida, where Phillips now resides, to Stonehenge in Wiltshire, England around one year ago. They presented the long-missing piece to Heather Sebire, a curator at English Heritage, the organization that cares for the site.

“The last thing we ever expected was to get a call from someone in America telling us they had a piece of Stonehenge,” Sebire says.