June 18, 1872 Woman's Suffrage Convention held at Merchantile Liberty Hall June 27, 1872 Paul Laurence Dunbar, Dayton Ohio, poet/novelist (Oak & Ivory) June 28, 1872 Ludwig Friedrich Hetsch, composer, dies at 66 July 1, 1872 Louis Bleriot, 1st man to fly an airplane across English Channel July 3, 1872 Habib Ullah Chan, emir of Afghanistam (1901-19) July 4, 1872 Calvin Coolidge, [Silent Cal], Plymouth Vt, (R) 30th President (1923-29) July 7, 1872 Juan Lamonte de Grignon, composer July 9, 1872 Doughnut cutter patents by John Blondel, Thomaston, Me July 12, 1872 Emil Hacha, lawyer/president (Czechoslovakia) July 13, 1872 Alfons van de Perre, Flemish physician/MP July 15, 1872 Jose Enrique Rodo, Montevideo Uruguay, writer (Motivos the Proteo) July 16, 1872 Roald Amundsen, Norway, explorer, discovered South Pole July 18, 1872 Benito Juarez, Cuban justice/general (battle of Acapulco), dies at 66 July 18, 1872 Britain introduces secret ballot voting July 18, 1872 Julius Fucik, composer July 20, 1872 Alick Maclean, composer July 20, 1872 Deodat de Severac, composer July 20, 1872 Mahlon Loomis patents wireless radio July 22, 1872 David D Salas, Antillian writer (Josefina) July 26, 1872 George Louis Beer, historian (authority on British colonies)