June 13th (1373) was a Sunday. It's the 163rd day of the year (164th in leap years) in the Gregorian calendar. There are 202 days left to the end of the year.
Historical Events for 13th June, 1373
» Anglo-Portuguese Alliance between Kingdom of England England (Succession of states succeeded by the United Kingdom) and Portugal is the oldest Military alliance alliance in the world which is still in force.