The French founded colonies in much of eastern North America. They established forts and settlements that would become such cities as Quebec and Montreal in Canada; Detroit, Green Bay, St. Louis, Cape Girardeau, Mobile, Biloxi, Baton Rouge, New Orleans in the United States; and Port-au-Prince, Cap-Haitien, in Haiti; Cayenne in French Guiana; and Sao Luis (founded by St. Louis) in Brazil.
In 1682, the French claimed the Mississippi River basin, naming it Louisiana after King Louis XIV. This territory included large parts of present-day America and was crucial for French expansion and trade. The claim was made by explorer Robert Cavelier, Sieur de La Salle, during his expedition down the river.
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