Linked from

The 48 pages that link to Louisiana Purchase, each with the reason it gives.

• Haitian RevolutionRelated: The collapse of French ambitions in the Americas contributed to Napoleon’s decision to sell Louisiana.

• Mississippi RiverRelated: Control of the river’s outlet and western bank was a central strategic concern behind the purchase.

• American frontierRelated: It moved the imagined and political frontier far beyond the Mississippi River.

• French colonization of the AmericasRelated: The sale ended France’s renewed control of Louisiana and greatly expanded the United States.

• New OrleansRelated: The purchase brought New Orleans under U.S. control and expanded its role in national commerce.

• Lewis and Clark ExpeditionRelated: The purchase prompted an effort to survey the new territory and find routes across it.

• Saint-DomingueRelated: The failure to reassert French power in Saint-Domingue helped prompt Napoleon’s sale of Louisiana.

• Adams–Onís TreatyRelated: Its unclear limits contributed to disputes that the treaty sought to settle.

• James MonroeRelated: Monroe helped negotiate the purchase as a U.S. envoy in France.

• Midwestern United StatesRelated: It extended U.S. claims across lands that include much of the present-day Midwest.

• Louisiana (New France)Related: The sale transferred France’s reacquired Louisiana to the United States.

• LouisianaRelated: The purchase brought the region that became Louisiana under U.S. sovereignty.

• United States Army Corps of EngineersRelated: Corps engineers helped survey and map the newly acquired territory.

• Western United StatesRelated: It opened much of the land later incorporated into the western United States.

• Battle of VertièresRelated: French defeat in Saint-Domingue helped undermine Napoleon’s plans for a North American empire.

• Indian WarsRelated: The purchase accelerated U.S. expansion into lands occupied by Indigenous nations.

• St. LouisRelated: The purchase shifted St. Louis from Spanish rule into a rapidly expanding United States.

• William ClarkRelated: The purchase created the political context for the expedition Clark co-led.

• American WestRelated: It opened a vast interior region to U.S. claims and exploration.

• Meriwether LewisRelated: The purchase prompted Jefferson to commission an expedition into the newly acquired lands.

• MissouriRelated: The purchase brought the land that became Missouri under U.S. control.

• ArkansasRelated: The land that became Arkansas entered U.S. control through this purchase.

• Zebulon PikeRelated: Pike’s first expedition surveyed parts of the newly acquired territory.

• Baton RougeRelated: The purchase brought Baton Rouge under United States control.

• ShreveportRelated: The purchase brought the Shreveport region under United States control.

• U.S. stateRelated: Its lands later supplied territory for numerous states.

• French AmericaRelated: The sale transferred a vast former French claim and reshaped North American expansion.

• History of ColoradoRelated: The purchase intensified American claims to lands that included parts of present-day Colorado.

• History of MissouriRelated: The purchase transferred Missouri from European empires to U.S. administration.

• History of TexasRelated: The purchase intensified disputes over the boundary between Spanish Texas and the United States.

• René-Robert CavelierRelated: The purchase transferred much of the territory associated with La Salle’s claim to the United States.

• United States of AmericaRelated: It more than doubled the country's area and accelerated continental expansion.