Aftermath of the Persian Wars
As a result of the allied Greek success, a large contingent of the Persian fleet was destroyed and all Persian garrisons were expelled from Europe, marking an end of Persia's advance westward into the continent. The cities of Ionia were also liberated from Persian control.
The U.S got involved to prevent a communist takeover of South Vietnam and to stop the spread of communism. The U.S first deployed troops in 1965.
<span> Between </span>1790<span> and </span>1820<span>, the population of the United States more than doubled to nearly 10 million people.</span>
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