Generation 1 is the term that the original Transformers toyline, comics and cartoons have come to be called to distinguish them from all of the other Transformers material that was spun off of this base. The toyline ran from 1984 until 1990 in North America. The cartoon, which was how a sizable majority of fans were introduced to Transformers, ran for three complete seasons and a short fourth season starting in 1984. The Marvel comic which is the main focus of this site had two incarnations. The best known is the monthly US comic which ran from 1984 to 1991 comprising 80 issues. Marvel UK ran a fortnightly (and for a time, weekly) version of the comic that was composed of reprints of the US issues mixed with large amounts of UK specific stories and eventually spanned 332 issues from 1984 until 1992.