Timeline of 1900's By 07079.casp Jun 8, 1901 Invention of Vacuum cleaner Jan 7, 1902 Invention of air conditioning; automatic tea maker Dec 17, 1903 Invention of electrocardiogram; first powered flight Apr 7, 1904 Invention of radar; te bags Feb 15, 1905 Invention of plastic Mar 4, 1906 Invnetion of radio broadcasting Feb 9, 1907 Invention of electric washing machine Jul 18, 1908 Invention of coffee filter; water coolers; paper cups May 4, 1913 Invention of crossword puzzles; bras; zips Nov 16, 1916 Invention of sonar Dec 31, 1920 Invention of hair dryers; kiss-proof lipstick Jan 1, 1921 nvention of robots; insulin Apr 11, 1924 Invention of frozen food Feb 6, 1925 Invention of televison Feb 6, 1926 invention of aerosol sprays Feb 6, 1927 Invention of ‘Talkies’ at the movies Feb 6, 1928 Invention of penicillin Feb 6, 1930 Invention of jet engine; mechanical toothbrushes; Scotch tape Feb 6, 1932 Invention of parking meter Feb 6, 1935 Invention of electric guitar Feb 6, 1936 Invention of sun tan lotion; electric blanket Feb 6, 1938 Invention of ballpoint pen; photocopying Feb 6, 1939 Invention of helicopters Feb 6, 1942 Invention of first nuclear reactor built; Feb 6, 1946 Invention of microwave ovens; automation; Bikini; Tupperware; Tupperware Parties Feb 6, 1947 Invention of transistors; holograms; mobile phones Feb 6, 1948 Invention of frisbees; velcro; general purpose computers; contact lenses Feb 6, 1950 Invention of credit cards Feb 6, 1951 Invention of Tetrapak cartons of milk Feb 6, 1952 Invention of wide-screen cinema Feb 6, 1953 Invention of transistor radio Feb 6, 1954 Invention of solar cell Feb 6, 1955 Invention of atomic clock Feb 6, 1956 Invention of video tape recorder Feb 6, 1957 Invention of satellite Feb 6, 1958 Invention of video games; modems Feb 11, 1959 Invention of car seat belts Feb 11, 1960 Invention of cardiac pacemaker; laser Feb 11, 1961 invention of Man in Space Feb 11, 1964 Invention of computer mouse; miniskirt Feb 11, 1965 Invention of optical disc; bay buggy; HTML: optical disc; bay buggy; HTML Feb 11, 1966 Invention of pocket television Feb 11, 1967 Invention of portable calculator Feb 11, 1968 Invention of biometrics; Workmate; artificial heart Feb 11, 1969 Invention of the Internet; cash dispenser Feb 11, 1970 Invention of LED and LCD’s Feb 11, 1971 Invention of floppy disc Feb 11, 1973 Invention of barcodes; post-it-note; car airbags Feb 11, 1975 Invention of personal computer; laser printer Feb 11, 1977 Invention of MRI scanner; inkjet printer Feb 11, 1979 Invention of first personal stereo Feb 11, 1980 Invention of Hepatitis B vaccine Feb 11, 1987 Invention of disposable contact lenses Feb 11, 1989 Invention of World Wide Web