Irish Protestants celebrate Orangemen’s Day — also known as The Twelfth or Glorious Twelfth — on the July 12th of July every year. The day commemorates Protestant king William of Orange’s victory over Catholic king James II at the Battle of the Boyne: a pivotal moment for the Protestant cause. In Ulster, split 50/50 between Catholics and Protestants, the day has historically seen outbursts of sectarian violence. But today its reputation has improved, with most recent marches celebrated peacefully.