Answer:
The Civil Rights Movement.
Explanation:
The Abolition Movement was from the 1830s through 1870, according to History.com. The Spanish-American War happened from April 21, 1898 to August 13, 1898. The Great War (also known as World War I) happened from July 28, 1914 to November 11, 1918. World War II happened from September 1, 1939 to September 2, 1945. The Civil Rights Movement went from 1954 to 1968.
Atomic bombings of Hiroshima and Nagasaki
