Vincent. Little is known of the personal history of this celebrated encyclopaedist. The years of his birth and death are uncertain, but the dates most frequently assigned are 1190 and 1264 respectively. It is thought that he joined the Dominicans in Paris shortly after 1218, and that he passed practically his whole life in his monastery in Beauvais, where he occupied himself incessantly upon his enormous work, the general title of which is Speculum Maius, containing 80 books, divided into 9885 chapters. The third part, Speculum Historiale, in 31 books and 3793 chapters, bring the History of the World down to A.D. 1250.