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France cedes Louisiana to Spain in the Treaty of Tontainebleau
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Treaty of Paris ends the Seven Years' War
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Treaty of Peace between Britain and Spain
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The Nootka Sound Affair - Britain and Spain both claim rights to the same area
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Treaty of London (a.k.a Jay's Treaty) - British to evacuate northern forts and get fur trading rights over the border in return
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Treaty of San Lorenzo del Escorial (a.k.a Pickney's Treaty) - US gets rights to navigate the Mississippi and right of deposit at New Orleans
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Treaty of Alliance between France and Spain
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Convention of 1800 - friendship pact between France and the US
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Treaty of San Ildefonso
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Treaty of Luneville and the Convention of Aranjuez (March) complete the retrocession of Louisiana back to France
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Treaty of Montfontaine between France and Spain; also separate friendship treaty between France and US
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Carlos IV finally signs the official papers to hand over Louisiana to France
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Spains withdraws US right to navigate the Mississippi and deposit in New Orleans
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Jefferson sends Robert R. Livingston and then Jason Monroe to negotiate in Paris
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Louisiana Purchase; ratified October 31st after being approved the previous day by Congress