The Elemental Nations was the unofficial name of the Continent of the Shinobi.

A Subcategory of Humans who could harness and control their body's internal energy also called Chakra.

Interestingly it was in the time of the Sage of the Six Paths the First God of Shinobi that the people learned to harness this power. The Legendary figure taught people the people this power in the hopes that it could be used to make people understand eachother.

But like all gifts, the once peaceful power came under Humanity's destructive nature and was molded into a tool for war and conflict.

Kingdoms, Empires, Powerful Clans and Organizations rose and fell after the discovery of chakra.

The Warring Clans Era. A time of Great bloodshed where even children weren't exempt from cruelty and war up till the Era of Hidden Villages none were truly spared from it's influence.

Truly the world had become a place where War and conflict was commonplace.

And yet people still hope for a miracle but even The God of shinobi couldn't foretell the coming age that was too arrive.