When was Advanced Dungeons and Dragons published?

Advanced Dungeons & Dragons (AD&D) was published in several stages, with the first edition core rulebooks released in the late 1970s and early 1980s. The Player's Handbook was published in 1978, followed by the Dungeon Master's Guide in 1979 and the Monster Manual in 1983. AD&D represented a more complex and structured version of the original Dungeons & Dragons game.