The Crimean War is fought between Russia and a coalition of France, Great Britain, the Ottoman Empire, and the Kingdom of Sardinia, ending in Russian defeat.
1854
American Naval Officer Matthew C. Perry negotiates a treaty between the United States and Japan, which opens the Japanese ports of Shimoda and Hakodate to U.S. commerce.
1854
British nurse Florence Nightingale assumes direction of all British nursing operations at the Crimean War front.
1854
In the Gadsden Purchase, the United States buys about 76,735 sq km (about 29,640 sq mi) of land from Mexico.
1855
Leaves of Grass by American poet Walt Whitman is first published.