Secretaries of State

James Buchanan

Biography of Secretary of State, James Buchanan

James Buchanan was appointed Secretary of State by President James K. Polk on March 6, 1845. Buchanan entered duty on March 10, 1845, and left the position on M...Read More >>

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The UN SSOD allowed the Carter administration to explore and encourage multilateral arms control initiatives. #FRUS 23 Nov

Experience in the Navy’s nuclear sub program influenced Carter’s position on safeguards and the nuclear fuel cycle. 20 Nov

Carter met with heads of US nuclear labs during comprehensive test ban negotiations—Doc. 206 #FRUS #twitterstorians 20 Nov


Prague 1968

On August 20, 1968, the Soviet Union led Warsaw Pact troops in an invasion of Czechoslovakia.


A Journey Shared

For teachers: A curriculum guide exploring 200 years of U.S.-China relations.



A guide to the history of U.S. diplomatic relations with Vietnam.