Christopher Columbus sailed West from Spain and discovered the Americas.
The Monroe Doctrine is the best known U.S. policy toward the Western Hemisphere. Buried in a routine annual message delivered to Congress by President James Monroe in December 1823, the doctrine warns European nations that the United States would not tolerate further colonization or puppet monarchs.
<span>B. Daniel Boone
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Robert Fulton invented the first steamship which revolutionized transportation because now people could move faster on a ship than they ever could before.
Congress<span> has the </span>power<span> to establish post offices and post roads, issue patents and copyrights, fix standards of weights and measures, establish courts inferior to the Supreme Court, and "To make all laws which shall be necessary and proper for carrying into execution the foregoing </span>powers<span>, and all other </span>powers<span> ...</span>