1226 Tran Thu Do, head of the Tran clan of Vietnam, forces Ly Hue Tong, the last emperor of the Ly dynasty, to commit suicide.
1400 The Tran Dynasty of Vietnam is deposed after 175 years of rule by Ho Quy Ly, a court official.
1944 World War II: The People's Army of Vietnam is formed to resist Japanese occupation of Indo-China, now Vietnam.
1945 Vietnam declares its independence, forming the Democratic Republic of Vietnam.
1962 Vietnam War: After a trip to Vietnam at the request of US President John F. Kennedy, US Senate Majority Leader Mike Mansfield becomes the first American official not to make an optimistic public comment on the war's progress.
1965 Vietnam War: Just miles from Da Nang, United States Marines repel an intense attack by wave after wave of Viet Cong forces, killing 56 guerrillas. Among the dead, a sketch of Marine positions is found on the body of a 13-year-old Vietnamese boy who sold drinks to the Marines the day before.
1965 Vietnam War: In response to U.S. President Lyndon B. Johnson's call for "more flags" in Vietnam, Philippines President Elect Ferdinand Marcos announces he will send troops to help fight in South Vietnam.
1969 The Battle of Hamburger Hill in Vietnam ends.
1971 President Richard Nixon announces his decision to increase the rate of American troop withdrawals from Vietnam.
1972 Vietnam War: White House Press Secretary Ron Ziegler tells the press that there will be no more public announcements concerning American troop withdrawals from Vietnam due to the fact that troop levels are now down to 27,000.
1995 Full diplomatic relations are established between the United States and Vietnam.