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Invention of the Cotton Gin
In 1793, Eli Whitney invented a simple machine that influenced the history of the United States. He invented a cotton gin that was popular in the South. The south became very popular for cotton. -
Tariff of 1816
This was the first tariff passed by congress. This was a function of protecting the U.S. manufacturing business with the overseas. Tariffs served to raise the increase of imports to operate the national government with the overseas. -
Missouri Compromise
Henry Clay's plan to admit Missouri and Maine into the union created a balance between slave states and free states and free states. This solved the division that was already forming between the North and the South over slavery. -
Monroe Doctrine
The Monroe Doctrine is the best known U.S. policy toward the Western Hampshire. Monroe warned European countries not to interfere in the Western Hemisphere, stating "that the American continents are henceforth not to be considered as subjects for future colonization by any European powers." -
Invention of the electronic telegraph
Developed in the 1830s and 1840s by Samuel Morse, and other inventors, the telegraph revolutionized long-distance communication. It worked by transmitting electrical signals over a wire laid between stations.
