The British theological world was stirred at the beginning of the eighteenth century by what the learned and staunchly orthodox Presbyterian historian James Seaton Reid has called “latitudinarian notions on the inferiority of dogmatic belief and the nature of religious liberty.” In the 1690s John Locke had published his Reasonableness of Christianity and Letters on Toleration, followed by John Toland's Christianity Not Mysterious. In 1710 “Honest Will” Whitson, Sir Isaac Newton's successor as Professor of Mathematics at Cambridge, was expelled from the University for embracing Arian views. His departure was accompanied by rumors—long since substantiated—about his great predecessor's heterodox theology. Traditional theologians were shocked next by the appearance of Dr. Samuel Clark's Scripture Doctrine of the Trinity which resulted in the author's arraignment before Convocation of the Church of England in 1714. The very same year John Simson, Professor of Divinity in the University of Glasgow, was first tried before the General Assembly of the Scottish Presbyterian Church for teaching Arian and Pelagian errors. In 1729, after three more trials, Simson was suspended from his professorship for denying the numerical oneness of the Trinity. Fierce doctrinal contentions also began to occupy English Presbyterians, Congregationalists, and Baptists, erupting during the famous Salters’ Hall meeting early in 1719.