How long has the series transformers been around?

The Transformers franchise began in 1984 with the release of the original Transformers toys. The toys were based on a Japanese toy line called Diaclone, which featured transforming robots that could change from vehicles into robots. The Transformers toys were a huge success, and they quickly spawned a cartoon series, comic books, and video games. The franchise has continued to grow and evolve over the years, and it remains one of the most popular toy and entertainment brands in the world.