Answer:
After the arrival of US Commodore Perry in 1853, Japan ended with 251 years of isolation and exclusion policies (Sakoku), thus opening the Japanese ports of Shimoda and Hakodate to trade with the United States and later the rest of the world.
Explanation:
The Kanagawa treaty was signed on March 31, 1854 between Commodore Matthew Perry of the United States and the authorities of Japan, in the Japanese port of Shimoda.
The Kanagawa Treaty was followed by the Treaty of Amity and Commerce of 1858, which allowed the concession of foreign establishments, extra territories for them and minimum tariffs for US imports.
Similar treaties were subsequently negotiated with Russians, French and British.