Samuel Pepys (1633-1703) was an English naval administrator and Member of Parliament, now most famous for the diary he kept for a decade while still a relatively young man. Born on February 23, 1633, in London, he graduated from Cambridge before entering the bureaucracy of the English fleet. His diary, which he maintained from 1660 to 1669, is a principal source for the history of the English Restoration period, providing a combination of personal revelation and eyewitness accounts of great events, such as the Great Plague of London and the Great Fire of London. Pepys's diary is celebrated for its richly detailed observations, unguarded frankness, and lively prose, making Pepys one of the era's most important English-language diarists. The comprehensive edition 'Diary of Samuel Pepys - Complete 1664 N.S' delves into his observations and experiences during that specific year, offering historians and literary enthusiasts a valuable and intimate insight into seventeenth-century life. His diary works were not published until the 19th century but since then have been considered invaluable to scholars for their candor and historical relevance. Pepys's writing style is informational yet engaging, making it an accessible document for those interested in the social history of the time. His influence extends to a variety of disciplines, including history, literature, and the study of the English language.