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The United States joined World War I. -
The 19th Amendment gave women the right to vote. -
The Stock Market Crash of 1929 caused the Great Depression -
Japan attacked naval base Pearl Harbor leading the U.S. to join WWII. -
Martin Luther King Jr. gave his "I have a dream speech" during the Civil Rights Movement. -
President John F. Kennedy was assassinated in Dallas, Texas. -
President Lyndon B. Johnson signed the Civil Rights Act into law. This prohibited discrimination based on race, color, religion or sex. -
Martin Luther King Jr., was assassinated outside his hotel balcony prompting major outbreaks of racial violence. -
The Supreme Court legalized abortion with its decision on reproductive rights during Roe V. Wade. -
Nuclear power plant, Chernobyl, disaster in Ukraine was an explosion that was the worst nuclear accident in history.