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