1836: Samuel Colt patented his revolver. 1837: Thomas Davenport patented the first practical DC electric motor. 1870: Hiram Revels, a Republican from MS, became the first black member of the United States Senate. 1896: German chemist Ida Noddack, who co-discovered rhenium (named after the Rhine River), was born. 1901: United States Steel Corp. was incorporated by J.P. Morgan. 1908: The first tunnel under the Hudson River (Hudson & Manhattan railway tunnel) opened. 1928: The Federal Radio Commission (FRC) issued the first U.S. television license for Jenkins Laboratories. 1933: The 1st aircraft carrier, USS Ranger (CV-4), was launched. 1952: Brittan's Windscale plutonium plant began producing plutonium at Sellafield, on the Irish Sea coast. 1964: French aircraft designer Maurice Farman died.