"One Piece" is a youth manga created by Japanese manga artist Eiichiro Oda. It was serialized on July 22, 1997 in the weekly magazine "Shonen Jump" by Shueisha. The adapted TV anime "Sailor" premiered on Fuji TV on October 20, 1999.

On May 11, 2012, "One Piece" won the 41st Japan Cartoonist Association Award. This work has been officially certified by Guinness World Records as the most widely circulated single author manga series in the world. On July 21, 2017, the Japan Memorial Day Association was certified to establish July 22 as the "King of Navigation Day" every year.