Curious ancient practices

From Smithsonian magazine:

Thousands of years ago—and thousands of miles apart—the people of what are now Britain and Japan both created elaborate stone circles set up to interact with the solstices and to house remains of the dead.

A new exhibition at Stonehenge highlights compelling parallels between English and Japanese cultures during the Neolithic and Jōmon eras. Though they never interacted with each other, the two cultures seemed to have shared a lot in common—from stone circles to elaborate pottery to rituals connected to the sun.

“Circles of Stone: Stonehenge and Prehistoric Japan,” which opens today, explores those similarities through some 80 items from the Japanese Jōmon period, many of which have never before been on view outside Japan.

“To understand the significance of Stonehenge, we have to understand what is happening elsewhere in the world in prehistory,” Susan Greaney, a historian with English Heritage and a curator for the exhibition, tells the Guardian’s Steven Morris. “Although there was obviously no contact between Japan and Britain at this time, there are surprising parallels.”

Consider, for example, the Japanese stone circles from Ōyu and Isedotai in northern Japan. While not the imposing monoliths of Stonehenge, the two circles, made of thousands of smooth river stones, line up with the sun during the summer and winter solstices, and they were both used in burial rites. And for both monuments, collecting materials and completing construction would have taken enormous community effort.

 Here's a photo of one of the Japanese circles from one of the above links: