Who Gave the theory of nationalism?

It's little know around that the world that Concept of nationalism was first abstracted in India by a Maratha King Chatrapati Shivaji Maharaj. World did not had this concept before and wars were fought for Dharma( Righteousness), Religion or to grab power and resources. Christianity fought wars to spread message of Jesus and Save people. They justified terrible things that were done on the idea of a saviour. Islam fought war to spread Quran, These were wars fought for religion.

In India kings fought for dharma, If one king found out that other king was cruel and not doing the right thing for the masses and following his duties, There was war to remove that king and establish Dharma-The right order. 

Many wars are fought for land, for resources just to satisfy greed of a king for power. Chandra Gupta maurya fought for righteousness and to restore respect of his Guru.

Shivaji Maharaj was the first person who coined the concept of nationalism and war was fought for Swaraj. It was a First war of Independence. Hence this Idea of Independence is also born in India and father of it is Shivaji. World should know about this history of our great kings and our motherland.