It also known as the Feast of Saint George. It is the feast day of Saint George that is celebrated by various Christian Churches and by the cities, countries, kingdoms and several nations of which Saint George is the patron saint.
Saint George's Day is celebrated on 23 April. This date is accepted traditionally of the saint's death in the Diocletianic Persecution of AD 303. This date currently falls on 6 May of the Gregorian calendar for those Eastern Orthodox Churches which use the Julian calendar. It was 5 May in the 19th century.