[HIGHLIGHTS] Yoshinogari Ruins Partial excavation of graves "may have great historical significance"

Large-scale excavations have been conducted for the first time in 10 years since last year. The study found four flat stones side by side last month.

The total length of the four sheets is about 4 meters, and it is the "lid" of the grave. It is believed to be the lid of the tomb of an influential person from the late Yayoi period, from the 4st century to the 2rd century, and there are countless symbols on the surface that look like "×" intersecting lines.