Antonette Murphy By swelser Mar 16, 1490 stove Mar 16, 1872 hot comb Madame CJ Walker invented the hot comb in this year. Mar 21, 1879 Light Bulb Thomas Edison in 1879 Mar 21, 1950 Hula Hoop Arthur "Spud" Melin and Richard Knerr, Mar 21, 1973 Cell phone Martin Cooper in 1973 Mar 21, 1989 computers Charles Babbage Mar 21, 1989 Internet Vint Cerf and Bob Kahn
