Samuel Pepys (23 February 1633 - 26 May 1703) was an English naval administrator and Member of Parliament, famous chiefly for his comprehensive diary. Although Pepys had no maritime experience, he rose by hard work and his talent for administration to be the Chief Secretary to the Admiralty. He was one of the first to apply methodical research and careful record keeping to the business of government, and his influence was important in the early development of the British Civil Service.
The detailed private diary that he kept during 1660–1669 was published after his
death and is one of the most important primary sources for this period, particularly as Pepys was witness to several key events of the period. He stopped writing due to his failing eyesight. His wife Elizabeth Pepys died the same year. Pepys himself died in 1703 without children.