Our Collection

At the Institute’s core is the Gilder Lehrman Collection, one of the great archives in American history. More than 70,000 items cover five hundred years of American history, from Columbus’s 1493 letter describing the New World to soldiers’ letters from World War II and Vietnam. Explore primary sources, visit exhibitions in person or online, or bring your class on a field trip.

Buchanan, James (1791-1868) Circular letter re: declaration of war on Mexico

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Gilder Lehrman Collection #: GLC01860.18 Author/Creator: Buchanan, James (1791-1868) Place Written: Washington Type: Document signed Date: 1846/05/14 Pagination: 1 p. + docket 32 x 21 cm

Summary of Content: Printed letter signed as Secretary of State. This copy was sent to to Seth Sweetser, U.S. Consul at Guayaquil.

Background Information:

People: Buchanan, James, 1791-1868

Historical Era: National Expansion and Reform, 1815-1860

Subjects: TexasMexican WarPresidentMilitary HistoryGovernment and CivicsDiplomacyGlobal History and US Foreign PolicyLatin and South America

Sub Era: Age of Jackson

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