Conversation so far:
what was the political goal of the tokugawa shogunate
The Tokugawa Shogunate organized Japanese society under the strict Tokugawa class system and banned most foreigners under the isolationist policies of Sakoku to promote political stability.
how long did the tokugawa government last
The Tokugawa Shogunate also known as the Edo Bakufu, was the feudal military government of Japan during the Edo period from 1600 to 1868.

Question: who established the government
Self-contained rewrite: who established the tokugawa government