Talk:Astro Boy (Canon)/Tonygameman/@comment-37377263-20191013062844/@comment-31768882-20191013102728

Originally there were 19 Types of Immortality, however, some were removed either because they over lapped with other Types or they didn't technically count as Immortality. Type 13 was originally Mechanic (Basically since they were a robot they couldn't die of old age, however, that was merged with Type 1).