Evolution of Punishment and Government Structure in Tohugawa Era

This week, we're starting our new longest ever series on the collapse of the Tokugawa shogunate and the birth of modern Japan. This week, we're taking a look at the political situation in the Tokugawa period -- how was the country carved up by Tokugawa Ieyasu? Who ruled what, and what kind of implications did that have in terms of establishing a secure and stable nation?