1606: The Great Construction Works at Edo Castle
The Edo shogunate ordered daimyo across the country to contribute labor and resources to Tenka Bushin, large-scale public works, advancing construction of Edo Castle's outer stone ramparts. Prominent daimyo including Katō Kiyomasa took charge of procuring stone and overseeing the work, transforming Edo into a grand castle town befitting the shogun's residence.
Events this year
Month unknown
Great Construction of Edo Castle Intensifies
The large-scale expansion of Edo Castle proceeded with western daimyo assigned construction duties, and the Honmaru was developed.
Tokugawa Ieyasu Designates Sunpu as Center of Retired Government
Tokugawa Ieyasu, who had transferred the shogunate to Hidetada and become ōgosho, decided to make Sunpu the base for his retired government. The actual construction began the following year.