September 6

394 – Battle of the Frigidus: Roman emperor Theodosius I defeats and kills Eugenius the usurper. His Frankish magister militum Arbogast escapes but commits suicide two days later. 1492 – Christopher Columbus sails from La Gomera in the Canary Islands, his final port of call before crossing the Atlantic Ocean for the first time. 1522 – The Victoria returns to Sanlúcar de Barrameda in Spain, the only surviving ship of Ferdinand Magellan's expedition and the first known ship to circumnavigate the world. 1620 – The Pilgrims sail from Plymouth, England on the Mayflower to settle in North America. (Old Style date; September 16 per New Style date.) 1628 – Puritans settle Salem, which became part of Massachusetts Bay Colony. 1634 – Thirty Years' War: In the Battle of Nördlingen, the Catholic Imperial army defeats Swedish and German Protestant forces. 1642 – England's Long Parliament bans public stage-plays. 1781 – American Revolutionary War: The Battle of Groton Heights takes place, resulting in a British victory. 1803 – British scientist John Dalton begins using symbols to represent the atoms of different elements. 1861 – American Civil War: Forces under Union General Ulysses S. Grant bloodlessly capture Paducah, Kentucky, giving the Union control of the Tennessee River's mouth. 1863 – American Civil War: Confederate forces evacuate Battery Wagner and Morris Island in South Carolina. 1870 – Louisa Ann Swain of Laramie, Wyoming becomes the first woman in the United States to cast a vote legally after 1807. 1885 – Eastern Rumelia declares its union with Bulgaria, thus accomplishing Bulgarian unification. 1901 – Leon Czolgosz, an unemployed anarchist, shoots and fatally wounds US President William McKinley at the Pan-American Exposition in Buffalo, New York. 1914 – World War I: The First Battle of the Marne, which would halt the Imperial German Army's advance into France, begins. 1930 – Democratically elected Argentine president Hipólito Yrigoyen is deposed in a military coup. 1936 – Spanish Civil War: The Interprovincial Council of Asturias and León is established.