The Baptists and Presbyterians were subject to many legal constraints and faced growing persecution; between 1768 and 1774, about half of the Baptists ministers in Virginia were jailed for preaching, in defiance of England's Act of Toleration of 1689 that guaranteed freedom of worship for Protestants. At the start of the Revolution, the Anglican Patriots realized that they needed dissenter support for effective wartime mobilization, so they met most of the dissenters' demands in return for their support of the war effort.