Dr. Samuel Johnson (1709-1784) was an English writer who is best known for publishing A Dictionary of the English Language in 1755. The dictionary took Johnson 9 years to complete and contained over 42,000 entries, with definitions, origins, and examples drawn from literary works. While criticized by some, the dictionary was groundbreaking in defining the English language and influenced dictionaries published after. It inserted lexicography into literary culture and established Johnson as the preeminent figure in 18th century English letters.