Inventions Over TIme By HeySisters 1590 Anton van Leeuwenhoek invents the microscope 1794 Eli Whitney invents the cotton gin 1839 Charles Goodyear invents vulcanized rubber 1844 Samuel Morse invents the telegraph 1852 Elisha Graves Otis invents the elevator break 1874 Elijah McCoy invented the ironing board 1887 Alexander Miles invents automatic elevator doors 1888 William Seward Burroughts invents the adding machine 1891 Whitcomb L. Judson invents the zipper 1903 Edwin Binney and Harold Smith invent Crayola Crayons 1906 Madam C.J. Walker Invents African American Hair Care Products 1906 Frank Henry Fleer invents bubble gum 1922 John Logie Baird invents the television 1925 Richard Drew invented scotch tape 1950 Jonas Salk invents a vaccine for polio
