Editing March 31 (section)

===Pre-1600===
* [[307]] &ndash; After divorcing his wife [[Minervina]], [[Constantine the Great|Constantine]] marries [[Fausta]], daughter of the retired [[Roman emperor]] [[Maximian]].<ref>{{cite book|author=Carol Humphrey Vivian Sutherland|title=The Roman Imperial Coinage: Constantine and Licinius: A.D. 313-337, by P. M. Bruun|url=https://books.google.com/books?id=-irTAAAAMAAJ|year=1966|publisher=Spink|page=25|isbn=9780900696855}}</ref>
*[[1146]] &ndash; [[Bernard of Clairvaux]] preaches his famous sermon in a field at [[Vézelay]], urging the necessity of a [[Second Crusade]]. [[Louis VII of France|Louis VII]] is present, and joins the Crusade.<ref>{{cite book|author=James J. Spigelman|title=Becket & Henry: The Becket Lectures|url=https://books.google.com/books?id=3FHwzF_hmUYC&pg=PA178|year=2004|publisher=James Spigelman|isbn=978-0-646-43477-3|page=178}}</ref>
*[[1174]] &ndash; A [[pro-Fatimid conspiracy against Saladin|conspiracy]] against [[Saladin]], aiming to restore the [[Fatimid Caliphate]], is revealed in [[Cairo]], involving senior figures of the former Fatimid regime and the poet [[Umara al-Yamani]]. Modern historians doubt the extent and danger of the conspiracy reported in official sources, but its ringleaders will be publicly executed over the following weeks.<ref>{{Kalifen und Assassinen|pages=294–297}}</ref><ref>{{Cite book |last=Fulton |first=Michael S. |year=2022 |title=Contest for Egypt: The Collapse of the Fatimid Caliphate, the Ebb of Crusader Influence, and the Rise of Saladin |location=Leiden and Boston |publisher=Brill |isbn=978-90-04-51227-6 | pages=150–151}}</ref>
*[[1492]] &ndash; Queen [[Isabella I of Castile|Isabella of Castile]] issues the [[Alhambra Decree]], ordering her 150,000 [[Spanish and Portuguese Jews|Jewish]] and [[Moors|Muslim]] subjects to convert to [[Christianity]] or face expulsion.
*[[1521]] &ndash; [[Ferdinand Magellan]] and [[Magellan's circumnavigation|fifty of his men]] came ashore to present-day [[Limasawa]] to participate in the [[First Mass in the Philippines|first Catholic mass in the Philippines]].<ref name=PNA>{{cite news | first =Linda B. | last =Valencia | title =Limasawa: Site of the First Mass | work =Philippines News Agency | publisher =Ops.gov.ph | url =http://www.ops.gov.ph/pia/kalayaan/limasawa.htm | access-date =March 26, 2021 |archive-url = https://web.archive.org/web/20071015033230/http://www.ops.gov.ph/pia/kalayaan/limasawa.htm <!-- Bot retrieved archive --> |archive-date = October 15, 2007}}</ref>