The Transformers (toyline)

The Transformers(retroactively called Generation One/G1) started as a joint venture between two companies: Hasbro of America and Takara of Japan. After an idea to rebrand and sell Takara's Diaclone and Microchange robot toys as a whole new line with a new concept behind it, Hasbro unknowingly would wind up making what would be one of the longest running toy franchises.

1984
Autobot
 * Optimus Prime

Decepticon
 * Megatron

1985
Autobot
 * Jetfire

Decepticon
 * Shockwave

1986
Autobot
 * Ultra Magnus

Decepticon
 * Galvatron