Which might be the first anime and manga "time loop" type
According to an article in Japanese Wikipedia, critics like Hiroki Azuma and Masachi Osawa have cited Urusei Yatsura 2: Beautiful Dreamer (1984) as the "pioneering work" or "classical work" featuring this structure in the Japanese anime/manga field. After this movie, the otaku industry experienced a surge in the use of this plot device. 

Arguably, the Chapter of Strange Beings (1981) in Osamu Tezuka's masterpiece Phoenix has a similar structure, but in this case:


   the protagonist herself does not experience the loop, but is endlessly replaced by younger incarnation of herself.