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The United States purchased France's claim to the Louisiana Territory for 80 million francs, or less than US$.03 per acre ($.07/ha).
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Louisiana Purchase
1803 acquisition of region of Middle America land by the U.S. from France
The Louisiana Purchase was the acquisition of the territory of Louisiana by the United States from the French First Republic in 1803. This consisted of most of the land in the Mississippi River's drainage basin west of the river. In return for fifteen million dollars, or…Source: Wikipedia (CC BY-SA)
Louisiana (New France)
District of New France
Louisiana, also known as French Louisiana, was a district of New France. In 1682, the French explorer René-Robert Cavelier, Sieur de la Salle erected a cross near the mouth of the Mississippi River and claimed the whole of the drainage basin of the Mississippi River in the name…Source: Wikipedia (CC BY-SA)
French franc
Currency of France from 1795 to 2002
The franc, also commonly distinguished as the French franc (FF), was a currency of France. Between 1360 and 1641, it was the name of coins worth 1 livre tournois and it remained in common parlance as a term for this amount of money. It was reintroduced in 1795. After two…Source: Wikipedia (CC BY-SA)
Acre
Unit of area
The acre is a unit of land area used in the British imperial and the United States customary systems. It is traditionally defined as the area of one chain by one furlong, which is exactly equal to 10 square chains, 1⁄640 of a square mile, 4,840 square yards, or 43,560 square…Source: Wikipedia (CC BY-SA)
Hectare
Metric unit of area
The hectare is a non-SI metric unit of area equal to a square with 100-metre sides (1 hm2), that is, 10000 square metres, and is primarily used in the measurement of land. There are 100 hectares in one square kilometre. An acre is about 0.405 hectares and one hectare contains…Source: Wikipedia (CC BY-SA)