Editing February 13 (section)

===Pre-1600===
* [[962]] &ndash; Emperor [[Otto I, Holy Roman Emperor|Otto I]] and Pope [[Pope John XII|John XII]] co-sign the ''[[Diploma Ottonianum]]'', recognizing John as ruler of [[Rome]].<ref>{{cite book|last=Kirsch|first=Johann Peter|chapter=John XIII|title=The Catholic Encyclopedia. Vol. 8|editor-last1=Herbermann|editor-first1=Charles G.|editor-last2=Pace|editor-first2=Edward A|editor-last3=Pallen|editor-first3=Condé B.|editor-last4=Shahan|editor-first4=Thomas J.|editor-last5=Wynne|editor-first5=John J.|location=New York|publisher=Encyclopedia Press|date=1910|oclc=13551132|url=https://books.google.com/books?id=4HkqAAAAMAAJ|page=427}}</ref>
*[[1258]] &ndash; [[Siege of Baghdad (1258)|Siege of Baghdad]]: [[Hulegu Khan]], a prince of the [[Mongol Empire]], orders his army to sack and plunder the city of [[Baghdad]], which they had just captured.<ref>{{cite book |last=Atwood |first=Christopher P. |date=2004 |title=Encyclopedia of Mongolia and the Mongol Empire |publisher=Facts on File |location=New York |isbn=978-0-8160-4671-3 |url=https://www.academia.edu/8855875 |access-date=2 March 2022 |page=2}}</ref>
*[[1322]] &ndash; The central tower of [[Ely Cathedral]] falls on the night of 12th&ndash;13th.<ref>{{cite journal|last=Lindley|first=Phillip|title=Octagon at Ely|journal=Journal of the British Archaeological Association|date=1986|volume=139|issue=1|page=75|doi=10.1179/jba.1986.139.1.75}}</ref>
*[[1352]] &ndash; [[War of the Straits]]: The [[Battle of the Bosporus]] is fought in a stormy sea into the night between the Genoese, Venetian, Aragonese, and Byzantine fleets.<ref>{{cite book | last = Musarra | first = Antonio | title = Il Grifo e il Leone: Genova e Venezia in lotta per il Mediterraneo | year = 2020 | publisher = Editori Laterza | location = Bari and Rome | isbn = 978-88-581-4072-7 | language = Italian | pages=235–236 }}</ref>
*[[1462]] &ndash; The [[Treaty of Westminster (1462)|Treaty of Westminster]] is finalised between [[Edward IV of England]] and the Scottish [[Lord of the Isles]].<ref>{{cite book|last=Macdougall|first=Norman|title=James III: A Political Study|location=Edinburgh|publisher=J. Donald Publishers|date=1982|isbn=9780859760782|page=68, fn. 30}}</ref>
*[[1503]] &ndash; [[Challenge of Barletta]]: Tournament between 13 Italian and 13 French knights near [[Barletta]].<ref>{{cite book|last=d'Azeglio|first=Massimo|translator-last=Pansini|translator-first=Anthony J.|title=The Challenge of Barletta: Ettore Fieramosca, or, La Disfida di Barletta|location=Waco, Tex.|publisher=Greenvale Press|date=1996|oclc=43076306|page=xi|postscript=none}}; {{cite book|last=Alexander|first=Alfred|title=Giovanni Verga: A Great Writer and His World|location=London|publisher=Grant and Cutler|date=1972|isbn=9780900411359|page=99}}</ref>
*[[1542]] &ndash; [[Catherine Howard]], the fifth wife of [[Henry VIII of England]], is executed for [[adultery]].<ref>{{cite book|last=Russell|first=Gareth|title=Young and Damned and Fair: The Life of Catherine Howard, Fifth Wife of King Henry VIII|location=New York|publisher=Simon & Schuster|date=2017|isbn=9781501108631|url=https://books.google.com/books?id=LCKLDgAAQBAJ|page=24}}</ref>