Maria Mitchell — American Scientist born on August 01, 1818, died on June 28, 1889
Maria Mitchell was an American astronomer who, in 1847, by using a telescope, discovered a comet which as a result became known as "Miss Mitchell's Comet". She won a gold medal prize for her discovery which was presented to her by King Frederick VI of Denmark - this was remarkable for a woman. On the medal was inscribed "Non Frustra Signorum Obitus Speculamur et Ortus" in Latin (taken from Georgics by Virgil. Mitchell was the first American woman to work as a professional astronomer... (wikipedia)