October 20, 1803The United States Senate ratifies the Louisiana Purchase.
The Louisiana Purchase was the acquisition by the United States of America of 828,800 square miles (2,147,000 km2) of France's claim to the territory of Louisiana in 1803. The U.S. paid 60 million francs ($11,250,000) plus cancellation of debts worth 18 million francs ($3,750,000), for a total sum of 15 million dollars (less than 3 cents per acre) for the Louisiana territory ($219 million in 2010 dollars, less than 42 cents per acre).
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April 9, 1682Robert Cavelier de La Salle discovers the mouth of the Mississippi River, claims it for France and names it Louisiana.
In 1682 La Salle departed from present-day Fort Wayne with 18 Indians and canoed down the Mississippi River. He named the Mississippi basin La Louisiane in honor of Louis XIV and claimed it for France. At what later became the site of Memphis, Tennessee, La Salle built the small Fort Prudhomme. On April 9, 1682, at the mouth of the Mississippi River near modern Venice, Louisiana, La Salle buried an engraved plate and a cross, claiming the territory for France.
, Mississippi River
April 30, 1812
The Territory of Orleans becomes the 18th U.S. state under the name Louisiana.
Seal of Louisiana
Louisiana is a state located in the southern region of the United States of America. Louisiana is the 31st most extensive and the 25th most populous of the 50 United States. Its capital is Baton Rouge and largest city is New Orleans. Louisiana is the only state in the U.S. with political subdivisions termed parishes, which are local governments equivalent to counties. The largest parish by population is East Baton Rouge Parish, and the largest by land area is Cameron Parish.
, United States