William Blackstone was an English Jurist, the first Vinerian professor of law at Oxford, and Solicitor General to the Queen. Before Blackstone joined the faculty, English universities had focused exclusively on the study of Roman law. Blackstone authored Commentaries on the Laws of England widely regarded as the most complete and readable commentary on English law. The Supreme Court often references Blackstone’s writing as a source for determining the intent of the Founders when interpreting the Constitution.