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Cause: U.S. wanted to stop the spread of communism in Greece and Turkey. Effect: U.S. promised to help any country threatened by communism. -
Cause: North Korea (communist) invaded South Korea (non-communist). Effect: Ended in a ceasefire; Korea stayed divided at the 38th parallel. -
Cause: Fear of communism spreading in the U.S. Effect: Many people were accused without proof and lost jobs. -
Cause: Schools were segregated by race. Effect: Supreme Court said segregation in schools was illegal. -
Cause: Rosa Parks was arrested for not giving up her bus seat. Effect: Helped start the civil rights movement; buses became integrated. -
Cause: Soviet Union launched the first satellite into space. Effect: U.S. started the space race and created NASA. -
Cause: Soviets put nuclear missiles in Cuba. Effect: Almost started a nuclear war; ended with a U.S.-Soviet deal. -
Cause: Civil rights leaders wanted jobs and freedom for African Americans. Effect: MLK gave his “I Have a Dream” speech; helped push civil rights laws. -
Cause: Shot while riding in a car in Dallas, Texas. Effect: Shocked the nation; Lyndon B. Johnson became president. -
Cause: Years of protests and pressure from civil rights leaders. Effect: Ended segregation in public places and banned job discrimination. -
Cause: U.S. wanted to stop communism in South Vietnam. Effect: War ended with U.S. withdrawal; North Vietnam won in 1975. -
Cause: Shot in Memphis while supporting workers’ strike. Effect: Huge riots and mourning; civil rights movement lost its leader. -
Cause: Shot after winning the California primary for president. Effect: More sadness and unrest during a violent year. -
Cause: North Vietnam attacked U.S. bases during Vietnamese New Year. Effect: Turned American public opinion against the Vietnam War. -
Cause: U.S. raced to beat the Soviets to the moon. Effect: U.S. landed Apollo 11; big win in space race. -
Cause: Nixon’s team tried to spy on political rivals. Effect: Nixon resigned in 1974 to avoid being impeached. -
Cause: A woman wanted the right to choose abortion. Effect: Supreme Court made abortion legal across the U.S. -
Cause: Iran’s new leaders were angry the U.S. helped the old Shah. Effect: 52 Americans were held hostage for 444 days; U.S.-Iran relations worsened.