Agincourt was once referred to as "hero town" by the citizens that lived there. The village of Agincourt was officially founded with the establishment of the Agincourt post office, opened in June 1858 by John Hill. The name of the settlement was after the site of Henry V's decisive English victory over French forces in 1415. The settlement name was spelled differently and more in line with Agincourt, Meurthe-et-Moselle. The original crossroads of Agincourt is located at Midland Avenue and Sheppard and served a rural agricultural population.