The Industrial Revolution was a period of major human advancement that began in Britain around 1760 and spread worldwide, where societies shifted from farming-based economies to manufacturing and factory-based economies powered by new machines and steam power. This transformation changed how people worked, lived, and produced goods.

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The American Civil Rights Movement was a social and political struggle from the 1950s to 1960s in which African Americans and their allies fought against racial segregation and discrimination to gain equal rights and opportunities. The movement used nonviolent protests, legal action, and activism to achieve major changes in American laws and society.

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Apollo 11 landed on the moon on July 20, 1969, when astronauts Neil Armstrong and Buzz Aldrin descended to the lunar surface in the Lunar Module while Michael Collins orbited above in the Command Module. The mission was the result of a decade of NASA training, rocket development, and spaceflight experience.

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World War II was caused by a combination of factors including the harsh Treaty of Versailles that punished Germany after World War I, the global economic depression of the 1930s, the rise of aggressive dictators like Adolf Hitler and Benito Mussolini, and the failure of the League of Nations to prevent military aggression.

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The Roman Empire fell due to a combination of factors including military pressure from Germanic tribes, economic weakness, political instability, and the empire becoming too large to govern effectively. The Western Roman Empire officially collapsed in 476 CE when the last emperor was overthrown.

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