The original Mobile Suit Gundam was an animated science-fiction series which debuted on Japanese television in 1979. In this groundbreaking series, the traditional giant robots of Japanese anime were for the first time portrayed as realistic war machines instead of invincible superheroes. The people who used these machines to fight in a futuristic space war were complex characters whose motivations and beliefs didn't break down into simple good and evil, and the story encompassed human drama and social commentary as well as thrilling robot battles.

   Mobile Suit Gundam's popularity led to a series of sequels and followups. Gundam became a collective term for many different time lines, all featuring their own story-lines, with a few common denominators and war machines called Gundam. The original timeline for the Gundam series was the Universal Century (UC) series, which included Mobile Suit Gundam (1979) and Mobile Suit Zeta Gundam (1985). Since the 1990s, alternative timelines have been produced and developed, including the Future Century, After Colony, After War, Correct Century, Cosmic Era and Anno Domini timelines.