The Qin dynasty by Emperor Shi Huang Di.
The U.S politicians and businessmen worried about the foreign nations controlled economic development so they supported open door policy
Reagan Apologized to Thatcher for Grenada Invasion. ... In October 1983, Reagan ordered U.S. troops to invade Grenada, a Caribbean island nation, after he determined that its turbulent Marxist government posed a threat to the almost 1,000 Americans on the island (many of whom were students at a medical school).
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The Adams–Onís Treaty of 1819, also known as the Transcontinental Treaty, the Florida Purchase Treaty, or the Florida Treaty, was a treaty between the United States and Spain in 1819 that ceded Florida to the U.S. and defined the boundary between the U.S. and New Spain.
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