until 1975. It received international recognition in 1950 as the "State of Vietnam
" (1949–55) and later as the "Republic of Vietnam" (1955–75). Its capital was Saigon. The terms "South Vietnam" and "North Vietnam
" became common usage in 1954 at the time of the Geneva Conference
, which partitioned
Vietnam into communist
and non-communist zones at the 17th parallel
South Vietnam's origins can be traced to the French
, a subdivision of French Indochina
, which consisted of the southern third of Vietnam.
1954 First Indochina War: The Geneva Conference partitions Vietnam into North Vietnam and South Vietnam.
1954 Dwight D. Eisenhower pledges United States support to South Vietnam
1955 Operation Passage to Freedom, the evacuation of 310,000 Vietnamese civilians, soldiers and non-Vietnamese members of the French Army from communist North Vietnam to South Vietnam following the end of the First Indochina War, ends.
1955 Ngô Đình Diệm declares himself Premier of South Vietnam.
1957 Ngo Dinh Diem of South Vietnam survived a communist shooting assassination attempt in Ban Me Thuot.
1957 President Ngo Dinh Diem of South Vietnam becomes the first foreign head of state to make a state visit to Australia.
1958 A parcel bomb sent by Ngo Dinh Nhu, younger brother and chief adviser of South Vietnamese President Ngo Dinh Diem, fails to kill King Norodom Sihanouk of Cambodia.
1960 A military coup against President Ngo Dinh Diem of South Vietnam is crushed.
1961 United States President John F. Kennedy sends 18,000 military advisors to South Vietnam.
1963 A protest against pro-Catholic discrimination during the Buddhist crisis is held outside South Vietnam's National Assembly, the first open demonstration during the eight-year rule of Ngo Dinh Diem.