Fifties Decade By Minthra Period: Jan 1, 1950 to Dec 31, 1959 Start of the Fifties Decade Jan 1, 1951 I.D. cards for South Africans South African's had to carry I.d. cards in order for people to identify their race. Jan 1, 1951 Offical End of World War Two Truman signs the Peace Treaty with Japan offically ending World War Two May 24, 2012 Creation of the Polio Vaccine Polio Vaccination