The Pepys Library, Magdalene College, Cambridge, late 19th-early 20th century. View of the Pepys Building which was built between 1670 and 1703. The first floor houses the personal library collected by English naval administrator Samuel Pepys (1633-1703) which he bequeathed to the college. The collection includes his famous diaries, as well as naval records, medieval manuscripts, printed ballads, Sir Francis Drake's personal almanac, and Pepys' own copy of Isaac Newton's "Philosophi? Naturalis Principia Mathematica".