Saint George is the patron saint of England in a tradition established in the Tudor period, based in the saint's popularity during the times of the Crusades and the Hundred Years' War. Veneration of the saint in folk religion declined in the 18th century. Attempts to revive the celebration of Saint George's Day (23 April) as an expression of English culture and identity date from the foundation of Royal Society of St. George in 1894. Since the beginning of the 2010s, such efforts have resulted in St George's Day celebrations with aspects of a national holiday in England.