1970s

1970 Simon & Garfunkel release "Bridge Over Troubled Water" 51 items 1971 Intel releases the 4004 microprocessor 73 items 1972 The Godfather premieres 68 items 1973 Skylab, first US space station, launched 57 items 1974 Wakeman quits Yes 54 items 1975 Microsoft founded 57 items 1976 Concorde begins supersonic passenger service 42 items 1977 Star Wars premieres 40 items 1978 Grease tops the box office 28 items 1979 Sony Walkman released 28 items