In japan between 1603 and 1868, the most notable action taken by the tokugawa shogunate was the

In japan between 1603 and 1868, the most notable action taken by the Tokugawa shogunate was the: The military conquest of China

Tokugawa Shogunate realized that The regions in China (such as manchuria) has a lot more natural resources than the regions in Japan.  During the period of 1603-1868, the shogunate created a lot of Military campaigns to took over these regions and improve Japan's economy.

Thomas edison created the light bulb.