Henry Blair patents a corn planter, he is the second black person to receive a U.S. patent.
Jacob Perkins invents an early refrigerator (really an ether ice machine).
2
1835
Charles Babbage invents a mechanical calculator.
Englishmen, Francis Pettit Smith invents the propeller.
Englishmen, Henry F. Talbot invents Calotype photography.
Solymon Merrick patents the wrench.
3
1836
"Bridge War" between residents of Ohio City and Cleveland.
Samuel Colt invented the first revolver.
4
1837
English schoolmaster, Rowland Hill invents the postage stamp.
Martin van Buren president of the USA 1837-1841.
Samuel Morse invents the telegraph.
Victoria. Ruler of England 1837-1901. House of Hanover: Daughter of Edward, 4th son of George III; married (1840) Prince Albert of Saxe-Coburg and Gotha, who became Prince Consort.
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