Tens of thousands of people are expected to attend parades across Northern Ireland on Saturday as the annual Twelfth of July commemorations take place. The event memorialises the Protestant King William III's victory over the Catholic King James II at the Battle of the Boyne in July 1690. It is the biggest day in the Orange Order's marching calendar and this year - the 335th anniversary of the battle - is currently forecast to be a very warm day. The main parades will be held in 18 venues across all six counties, with villages, towns and cities taking their turn...