Tokugawa Ieyasu, the founder of the Tokugawa shogunate, entered Edo Castle on a significant day. This event occurred on the first day of the eighth month. Tokugawa Ieyasu was born in 1543 and died in 1616, and his shogunate lasted from 1603 to 1867.

Further information about this event and its historical context is available. The topic of historical storm warnings in Japan is also related to this subject.

More details can be found in the source publication, which discusses Japan's historical storm warnings and their relevance in an age of record rain.