The Twelfth (also called Orangemen's Day) is a celebration held on 12 July by the Orange Order, a Protestant fraternal organisation originating in late 18th century Ulster. It celebrates the Glorious Revolution (1688) and victory of Protestant king William of Orange over Catholic king James II at the Battle of the Boyne (1690), which began the Protestant Ascendancy in Ireland. On and around the Twelfth, large parades are held by the Orange Order and Ulster loyalist marching bands, streets are bedecked with British flags and bunting, and large towering bonfires are lit. Today the Twelfth is mainly celebrated in Northern Ireland (where it is a public holiday), but smaller celebrations are held in other parts of the world where Orange lodges have been set up, including the Canadian province of Newfoundland where it is a provincial holiday. The Twelfth involves thousands of participants and spectators, although not all Protestants celebrate it.