Fifty years after Captain Terence O'Neill became prime minister of Northern Ireland, historians, politicians and former officials are still arguing over his legacy.
On the other hand, Terence O'Neill will be remembered as the first unionist leader to, eventually, introduce reforms that would have been unheard-of under previous prime ministers.
Terence O'Neill eventually resigned in April 1969 after a bruising general election in which he almost lost his own seat to Ian Paisley and in which he was opposed by several of his MPs, among them John Taylor, now Lord Kilclooney.