What is September 18?
{{calendar}} {{day}} == Events == === Up to 1900 === * [[41]] &ndash; [[Tiberius]] is confirmed as Roman Emperor by the Roman [[Senate]] following the natural death of [[Augustus Caesar]] on [[August 19]]. * [[96]] &ndash; [[Nerva]] becomes Roman Emperor, after the murder of [[Domitian]]. * [[324]] &ndash; [[Constantine the Great|Constantine I]] decisively defeats [[Licinius]] in the [[Battle]] of Chrysopolis, establishing his own control over the whole [[Roman Empire]]. * [[1180]] &ndash; [[Philip Augustus]] becomes [[King]] of [[France]]. * [[1502]] &ndash; [[Christopher Columbus]] lands in present–day [[Costa Rica]] on his final voyage. * [[1635]] &ndash; [[Ferdinand II, Holy Roman Emperor]] declares [[war]] on [[France]]. * [[1679]] &ndash; [[New Hampshire]] becomes a [[county]] of the [[Massachusetts]] Bay Colony. * [[1714]] &ndash; [[George I of Great Britain]] arrives in [[Great Britain]] for the first time since becoming King on [[August 1]]. * [[1739]] &ndash; The [[Treaty]] of [[Belgrade]] is signed, giving [[Belgrade]] to the [[Roman Empire]]. * [[1759]] &ndash; [[Seven Years' War]]: The British capture [[Quebec City]]. * [[1793]] &ndash; The first cornerstone for the US [[Capitol building]] is laid by [[George Washington]]. * [[1809]] &ndash; The [[Royal Opera House]] in [[London]] opens. * [[1810]] &ndash; The process towards [[Chile]]an independence begins with the formation of the first government junta. * [[1812]] &ndash; The 1812 [[Fire]] of [[Moscow]] dies down after destroying three quarters (75%) of the city. * [[1814]] &ndash; The [[Congress]] of [[Vienna]] begins, with discussions on a new order in [[Europe]]. * [[1851]] &ndash; First publication of what later becomes [[The New York Times]]. * [[1870]] &ndash; The [[Old Faithful Geyser|Old Faithful]] [[Geyser]] at [[Yellowstone National Park|Yellowstone]] is first observed by [[Henry D. Washburn]]. * [[1872]] &ndash; [[Oscar II of Sweden]] and [[Norway]] becomes King. * [[1882]] &ndash; The [[Pacific Stock Exchange]] opens. * [[1895]] &ndas