The hidden village system is a staple feature of the shinobi world in Naruto. This system was instituted with the founding of Konohagakure in the Land of Fire by Hashirama Senju and Madara Uchiha. With this event, the Warring States Period drew to a close, and other nations set up their own hidden villages to train ninja, with the Five Great Shinobi Countries standing out as the strongest among them.