Institutiones Chronologicae, Libri II, by William Beveridge, is a comprehensive work on chronology, accompanied by treatises on chronological arithmetic. Written in Latin, this historical text provides a detailed examination of chronological systems and calculations. Beveridge's work offers insights into the methods used to understand and organize historical events, making it a valuable resource for scholars and historians interested in the development of chronological studies. The inclusion of arithmetical treatises further enhances the book's utility, providing a practical dimension to the theoretical discussions. This edition preserves the original text, ensuring its accessibility for those studying historical chronology and the Latin language.