Secretaries of State

Jeremiah Sullivan Black

Biography of Secretary of State, Jeremiah Sullivan Black

Jeremiah Sullivan Black served as Attorney General in President James Buchanan’s Cabinet until December 17, 1860, when he was chosen to succeed Lewis Cass as Se...Read More >>

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Milestones

Prague 1968

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

Education

A Journey Shared

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

Countries

Vietnam

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