June 30 in History
296 – Pope Marcellinus begins his papacy.
763 – The Byzantine army of emperor Constantine V defeats the Bulgarian forces in the Battle of Anchialus.
1422 – Battle of Arbedo between the duke of Milan and the…
March 27 in History
1309 – Pope Clement V imposes excommunication and interdiction on Venice, and a general prohibition of all commercial intercourse with Venice, which had seized on Ferrara, a papal fiefdom.
1329 – Pope John…