1955-1975 By ashcarr1 Apr 12, 1955 Polio Vaccine is released Jun 18, 1955 Geneva Summit Conference This is held between the USSR, U.S. leaders, France, and Great Britain Nov 1, 1955 Rosa Parks is arrested Jun 29, 1956 Eisenhower signs Federal-Aid Highway Act Sep 24, 1957 Little Rock desegregation, 9 black students allowed to go to a all white school Oct 4, 1957 Sptnik is launched Oct 4, 1958 Transatlantic Air travel starts Feb 1, 1960 Lunch counter sit in protests begin Nov 8, 1960 JFK Becomes youngest elected president Dec 22, 1961 First U.S. combat death in Vietnam. Nov 1, 1963 Kennedy is assassinated Oct 21, 1967 March on the Pentagon to protest against war Apr 4, 1968 MLK is assassinated Jun 1, 1971 26th Amendment is Ratified Lowering the voting age from 21 to 18 Jun 17, 1972 Watergate Apr 26, 1973 Vietnam war ends