Example image of eyePlorer eyePlorer map for '1856 in science': Science Technology NGC 6539 Theodor Brorsen 1920 in science Copley Medal Geographical pole Gregor Mendel Henri Milne-Edwards List of explorers May 6 Robert Peary United States William Edmond Logan Wollaston Medal 1943 in science Invention July 10 Nikola Tesla 1776 in science Amedeo Avogadro Chemist July 9 1784 in science August 24 Geologist Paleontology William Buckland 1774 in science Francis Beaufort Hydrography