The 19th century saw large amounts of social change; slavery was abolished, and the First and Second Industrial Revolutions (which also overlap with the 18th and 20th centuries, respectively) led to massive urbanization and much higher levels of productivity, profit and prosperity. In the 1800s, America grew very fast. In 1803, the United States bought the Louisiana Territory from France. From 1800 to 1860, there were 17 new states. During the century, millions of immigrants came from other countries to the land of freedom.
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