Hito no Kurashi no Hyakuman-nen: Manimani March
Japanese title: 人のくらしの百万年 マニ・マニ・マーチ
Type: Movie
Source: Original
Episodes: 1
Status: Finished Airing
Aired: Dec 19, 1968
Duration: 18 min
Rating: G - All Ages
Studios: Toei Animation
Themes: Educational, Historical

In ancient times, humans caught prey only when needed, but eventually people found it more convenient to store their prey. As the time went on, bartering evolved into the birth of currency.

(Source: Wikipedia, translated)