Invention Timeline

1793 Eli Whitney invents the cotton gin
1807 First successful steamboat in the United States
1827 John Walker invents the modern matches.
1830 First steam locomotive developed
1846 Elias Howe invents a sewing machine.
1850 Steam-powered elevator invented
1867 George Pullman invents the Pullman Sleeping Car for train travel.
1868 W. A. Burt invents a typewriter.
1873 Joseph Glidden invents barbed wire.
1876 Alexander Graham Bell patents the telephone.
1879 Edison invents first light bulb. - Sir Joseph Wilson Swan was the first person to invent a practical and longer-lasting electric light bulb. 
1884 James Ritty invents the first working, mechanical cash register.
1884 Lewis Edson Waterman invents the first practical fountain pen.
1889 Roll film invented
1893 W. L. Judson invents the zipper.
1894 First successful automobile built in the United States
1895 First radio signal
1897 First American subway opened in Boston
1899 J.S. Thurman patents the motor-driven vacuum cleaner.
1903 Wright brothers make first successful airplane flight