The document discusses the history of the Apprentice Boys of Derry, a Protestant organization that commemorates the 1689 Siege of Derry. It describes how in 1688, Protestants fled to Derry to escape Catholic King James II. In 1689, when the governor wished to surrender Derry, 13 apprentice boys closed the gates, starting a 105-day siege. The apprentice boys' parades in Derry became controversial and helped spark The Battle of Bogside in 1969, marking the start of The Troubles. The parades were then banned but restrictions were later lifted.