A 400-year-old stone wall once part of Edo Castle ... “It is a groundbreaking discovery of the castle’s remains that we could have seen only in drawings or other records,” said an official ...

Seizing Edo, they rapidly built up their military presence in the southern Kanto Plain to such a point that, in 1180, Shigenaga, the second clan head, was asked by Minamoto Yoritomo (1147-99) to ...