Monroe Doctrine origins
1820s
Hawaii annexed
1898
Spanish-American War
1898
Anti-Imperialist League formed
1898
Panama Canal opens
1914
Mexico revolt
1913
Lusitania
1915
Germany: unrestricted submarine warfare
1917
Zimmerman Telegram
1917
Quota Act
1921
Johnson-Reed Act
1924
Fordney-McCumber Act
1922
Dawes Plan
1924
Washington Naval Conference
1921/22
Kellogg-Briand
1928
Withdrawal of USA in Latin America
1922-25
Pan American Conference
1938
Neutrality Acts
1935-37
Pearl Harbour
1941
Atlantic Charter
1941
Death of FDR
May 1945
Atomic bombing of Japan
August 1945
Tehran
1943
Yalta
early 1945
Potsdam
summer 1945
Truman Doctrine and Marshall Aid
late 1940s
Berlin Airlift
1948
NATO established
1949
Warsaw Pact
1955
National Security Act
1947
Geneva Summit
1955
Paris Summit
1960
Berlin Wall built
1961
Cuban Missile Crisis
1962
Chinese fall to communism
1949
Mutual Security Treaty (with Japan)
1951
Korean War
1950-53
Vietnam War
1964-1973
Bangladeshi war
1969
SALT I
1972
Helsinki Accords
1975
Arab-Israeli Conflict
1973-75
USSR invasion of Afghanistan
1979-1988
START (inc. Star Wars)
1982/83
Fall of the Berlin Wall
1989