What is October 20?
{{calendar}} {{day}} == Events == === Up to 1950 === * [[1548]] &ndash; The [[city]] of [[La Paz]], [[Bolivia]], is founded. * [[1708]] &ndash; The new [[Saint Paul's Cathedral]] in [[London]], designed by [[Christopher Wren]], is completed. * [[1714]] &ndash; [[George I of Great Britain]] and [[Ireland]] is crowned. * [[1720]] &ndash; Caribbean [[pirate]] [[Calico Jack]] is captured by the [[Royal Navy]]. * [[1728]] &ndash; The Great [[Fire]] of [[Copenhagen]] break out, and lasts for three days. * [[1740]] &ndash; [[Maria Theresa of Austria|Maria Theresa]] takes the throne of [[Austria]]. [[France]], [[Prussia]], [[Bavaria]], and [[Saxony]] refuse to honour the [[Pragmatic Sanction]] and the [[War of the Austrian Succession]] begins. * [[1803]] &ndash; United States Senate ratifies the [[Louisiana Purchase]]. * [[1818]] &ndash; The Convention of [[1818]] is signed between the [[United States]] and [[United Kingdom]]. Among other things, it settles most of the [[Canada]]–[[United States]] border to run along the 49th parallel. * [[1827]] &ndash; [[Battle of Navarino]] – a combined [[Ottoman Empire|Turkish]] and [[Egypt]]ian armada is destroyed by an allied [[United Kingdom|British]], [[France|French]], and [[Russia]]n naval force in the port of Navarino in Pylos, [[Greece]]. The most important result of this battle is the end of the [[Greek Liberation War]] and the affirmation of independence of modern [[Greece]]. * [[1831]] &ndash; First day of trading on the [[Madrid]] Stock Exchange. * [[1883]] &ndash; [[Peru]] and [[Chile]] signed the [[Treaty of Ancón]], by which the Tarapacá province was ceded to the latter, bringing an end to Peru's involvement in the [[War of the Pacific]]. * [[1904]] &ndash; [[Chile]] and [[Bolivia]] sign the [[Treaty of Peace and Friendship]]. * [[1910]] &ndash; The hull of the [[ship]] [[RMS Olympic|RMS ''Olympic'']] is launched in [[Belfast]]. * [[1914]] &ndash; [[World War I]]: The [[First Battle of Ypres|First Battle of Flanders]] begins. * [[1935]] &ndash; The [[Long March]] ends