Timeline of 1900's By haozhang Jan 4, 1901 Creation of the first motorised vacuum cleaner Feb 4, 1902 Air conditioning Feb 4, 1902 Automated tea maker Feb 4, 1903 Electrocardiogram Feb 4, 1903 First powered flight Feb 4, 1904 Radar Feb 4, 1904 Tea bag Feb 4, 1905 Plastic Feb 4, 1906 Radio Broadcasting Feb 4, 1907 First electric washing machine Feb 4, 1908 Coffe filter Feb 4, 1908 Water coolers Feb 4, 1908 Paper cups Feb 4, 1913 Crossord puzzles Feb 4, 1913 bras Feb 4, 1913 zips Feb 10, 1916 Sonar Feb 10, 1920 kiss-proof listick, hair dryers Feb 10, 1921 Robots and insulin Feb 10, 1924 Frozen food Feb 10, 1925 Television Feb 10, 1926 Aerosol sprays Feb 10, 1927 Talkies at the movies Feb 10, 1928 Penicilin Feb 10, 1930 Jet engine, mechanical toothbrushes, scotch tape Feb 10, 1931 Parking meter Feb 10, 1935 Electric guitar Feb 10, 1938 Ballpoint pen and photocopying Feb 10, 1939 Helicopters Feb 10, 1942 First nuclear reactor built Feb 10, 1946 Microwave ovens, automation, Bikini, Tupperware and Tupperware Parties Feb 10, 1947 Transistors, Holograms and mobile phones Feb 10, 1948 Frisbees, Velcro, General purpose computers and contact lenses Feb 10, 1950 Credit cards Feb 10, 1951 Tetrapack catons of milk. Feb 10, 1952 Wide-screen cinema Feb 10, 1953 transistor radio Feb 10, 1954 Solar cell Feb 10, 1955 Atomic clock Feb 10, 1956 Video tape recorder Feb 10, 1957 Satellite Feb 10, 1958 Videogames and Modems Feb 10, 1959 Car seats belts Feb 10, 1960 Cardiac pacemaker and laser Feb 10, 1961 The first man in the space Feb 10, 1964 Computer moise and miniskirt Feb 10, 1965 Optical disk, bay buggy and HTML Feb 10, 1966 Pocket television Feb 10, 1967 Portable calculator Feb 10, 1968 Biometrics, Workmate and artificial heart. Feb 10, 1969 The internet, cash dispenser Feb 10, 1970 LED and LCD's Feb 10, 1971 Floppy disc Feb 10, 1973 Barcodes, post-it.note and car airbags. Feb 10, 1975 Personal computer, laser printer Feb 10, 1977 MRI scanner and inkjet printer Feb 10, 1979 First personal stereo Feb 10, 1980 Hepatitis B vaccine Feb 10, 1987 Disponsable contact lenses Feb 10, 1989 World wide web