Editing April 8 (section)

===Pre-1600===
* [[217]] &ndash; [[Roman emperor]] [[Caracalla]] is assassinated and is succeeded by his [[Praetorian Guard]] [[prefect]], [[Marcus Opellius Macrinus]].<ref>{{cite book|last=Ando|first=Clifford|title=Imperial Rome AD 193 to 284: The Critical Century|location=Edinburgh|publisher=Edinburgh University Press|date=2012|isbn=9780748620500|url=https://books.google.com/books?id=2fTcCQAAQBAJ|pages=62–63}}</ref>
* [[876]] &ndash; The [[Battle of Dayr al-'Aqul]] saves [[Baghdad]] from the [[Saffarids]].<ref>{{cite book|last=Popović|first=Alexander|title=The Revolt of African Slaves in Iraq in the 3rd/9th Century|location=Princeton, N.J.|publisher=Markus Wiener Publishers|date=1999|isbn=9781558761629|page=74}}</ref>
*[[1139]] &ndash; [[Roger II of Sicily]] is excommunicated by [[Innocent II]] for supporting [[Antipope Anacletus II|Anacletus II]] as [[pope]] for seven years, even though Roger had already publicly recognized Innocent's claim to the papacy.<ref>{{cite book|last=Norwich|first=John Julius|title=Absolute Monarchs: A History of the Papacy|location=New York|publisher=Random House|date=2011|isbn=9781400067152|url=https://books.google.com/books?id=OHfuVL-sDBQC|pages=135–136}}</ref>
*[[1232]] &ndash; [[Mongol conquest of the Jin dynasty|Mongol–Jin War]]: The [[Mongol Empire|Mongols]] begin their [[Siege of Kaifeng (1232)|siege on Kaifeng]], the capital of the [[Jin dynasty (1115–1234)|Jin dynasty]].<ref>{{cite book|last1=Jaques|first1=Tony|last2=Showalter|first2=Dennis E.|title=Dictionary of Battles and Sieges: A Guide to 8,500 Battles From Antiquity Through the Twenty-First Century|location=Westport, Conn.|publisher=Greenwood Press|date=2007|isbn=9780313335365|url=https://books.google.com/books?id=Dh6jydKXikoC|page=502}}</ref>
*[[1250]] &ndash; [[Seventh Crusade]]: [[Ayyubid dynasty|Ayyubids]] of Egypt capture King [[Louis IX of France]] in the [[Battle of Fariskur (1250)|Battle of Fariskur]].<ref>{{cite book|last=Tucker|first=Spencer C.|chapter=Overview of 1200-1400: Chronology|title=A Global Chronology of Conflict: From the Ancient World to the Modern Middle East. Vol.1: ca. 3000 BCE—1499 CE|editor-last=Tucker|editor-first=Spencer C.|location=Santa Barbara, Calif.|publisher=ABC=CLIO|date=2010|isbn=9781851096671|url=https://books.google.com/books?id=h5_tSnygvbIC|page=282}}</ref>
*[[1271]] &ndash; In [[Syria]], sultan [[Baibars]] conquers the [[Krak des Chevaliers]].<ref>{{cite book|last=Baumer|first=Christopher|title=The History of Central Asia. Volume 3: The Age of Islam and the Mongols|location=London|publisher=I.B. Tauris & Co|date=2017|isbn=9781784534905|url=https://books.google.com/books?id=LhiWDwAAQBAJ|page=219}}</ref>