Original Generation 1 continuity
The Transformers, often retrospectively known as Generation 1, is the original Transformers franchise which took the United States by storm in 1984 and founded the Generation 1 continuity family.
The term "Generation 1" (G1) was originally a fan-coined back-formation from Generation 2. Until the Transformers: Generation 2 line was released, "Generation 1" was simply called The Transformers. Over the years, the use of the term G1 has become fairly universal and has frequently been used in official materials. It has appeared on Takara toy packaging, Hasbro's official Transformers website and reissue toy packaging, and as a series under the second Universe toyline.