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At the Institute’s core is the Gilder Lehrman Collection, one of the great archives in American history. More than 85,000 items cover five hundred years of American history, from Columbus’s 1493 letter describing the New World through the end of the twentieth century.

United States. Treaties, etc. Treaty between the United States and Spain (in Spanish)

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Gilder Lehrman Collection #: GLC03985.17 Author/Creator: United States. Treaties, etc. Place Written: Madrid Type: Pamphlet Date: 1796 Pagination: 31 p. : Height: 21.2 cm, Width: 29.9 cm Order a Copy

Printed in Spanish by En La Impenta Real. First printed edition. The Treaty of San Ildefonso. First American treaty with Spain. The treaty defined the boundaries of Spanish possessions in North America and secured common navigation of the Mississippi River. Signed 4 September 1796. ADD REFERENCES.

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