Editing April 19 (section)

===Pre-1600===
*[[AD 65]] &ndash; The [[freedman]] [[Milichus]] betrays [[Pisonian conspiracy|Piso's plot]] to kill the [[Roman emperor|Emperor]] [[Nero]] and all of the [[List of conspiracies (political)|conspirators]] are arrested.<ref>{{cite book|author=Richard Holland|title=Nero: The Man Behind the Myth|url=https://books.google.com/books?id=iJ_tAAAAMAAJ|year=2000|publisher=Sutton|isbn=978-0-7509-2447-4|page=188}}</ref>
* [[531]] &ndash; [[Battle of Callinicum]]: A [[Byzantine Empire|Byzantine]] army under [[Belisarius]] is defeated by the [[Sasanian Empire|Persians]] at [[Raqqa]] (northern [[Syria]]).<ref>{{cite book|author1=Irfan Shahid|author2=Irfan Shahîd|title=Byzantium and the Arabs in the Sixth Century|url=https://books.google.com/books?id=BEvEV9OVzacC&pg=PA134|year=1995|publisher=Dumbarton Oaks|isbn=978-0-88402-214-5|pages=134}}</ref>
*[[1506]] &ndash; The [[Lisbon Massacre]] begins, in which accused Jews are slaughtered by [[Portuguese people|Portuguese]] Catholics.<ref>{{cite book|author1=Paulo Mendes Pinto|author2=Susana Bastos Mateus|title=The Massacre of the Jews: Lisbon April 19, 1506|url=https://books.google.com/books?id=_LVmBAAAQBAJ&pg=PT28|date=2 September 2014|publisher=Alêtheia Editores|isbn=978-989-622-665-7|pages=28}}</ref>
*[[1529]] &ndash; Beginning of the [[Protestant Reformation]]: After the [[Second Diet of Speyer]] bans Lutheranism, a group of rulers (''German:'' [[Fürst]]) and [[Free imperial city|independent cities]] [[Protestation at Speyer|protest]] the reinstatement of the [[Edict of Worms]].
*[[1539]] &ndash; The [[Treaty of Frankfurt (1539)|Treaty of Frankfurt]] between Protestants and the Holy Roman Emperor is signed.<ref>Smith, ''The Age of the Reformation'', p. 122.</ref>