Historedia
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Construction of Edo Castle

When
1457
Where
Edo, Toshima District, Musashi Province
Part of
Construction of Edo Castle by Ōta Dōkan

Ōta Dōkan built Edo Castle in 1457 for Uesugi Sadamasa, establishing the core of the future castle town.

The flatland castle was constructed in Edo, Toshima District, Musashi Province. Dōkan designed the structure over earlier fortifications built by Edo Shigenaga. This project is considered the founding act of the castle town that grew into modern Tokyo.

Sources

  1. Edo Castle Wikipedia, revision of 2026-09-14
  2. Ōta Dōkan Wikipedia, revision of 2026-06-15

Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.