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On This Day
America250
— 250 years since 1776. Explore two and a half centuries of American history.
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April 30
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Anniversaries in American history that fall on April 30.
1975 · Eras
Fall of Saigon
Vietnam War ends in Communist victory; major Cold War defeat for U.S.
The Cold War
1803 · Concepts / Social Issues
Louisiana Purchase
U.S. doubles in size; 828,000 square miles acquired from France for $15 million
Westward Expansion
1803 · Events / Treaties & Agreements
Louisiana Purchase
The 1803 land acquisition that doubled the size of the United States
Louisiana Purchase