1. A nation-state was one in which the majority of its citizens, and not only its rulers,came to develop a sense of common identity and shared history or descent.2. The concept and practices of a modern state, in which a centralised power exercisedsovereign control over a clearly defined territory, had been developing over a longperiod of time in Europe.
Features of nation state that emerged in Europe in 20th century:(a) Disintegration of the ottoman empire with european subject nationalities breaking up and declaring their independence(b)this period witnessed intense rivalry and formation of groups among nation states over trade and colonies as well as over naval and military might.one can give example of the first and second world war in this century(c)the idea of nation state became well accepted and endorsed in colonies who waged an anti imperial struggle and led movements for independent nation states in the colonies.

\t\xa0The Ottoman empire disintegrated and European subject nationalities split up demanding their independence.\t\xa0Rivalry was at the peak during this period and the nation states formed various groups and colonies. The best examples of this were during both the World Wars that took place in this century.\t\xa0The concept of nation state was accepted readily in colonies and paved way for them to lead movements asking for independent nation states.
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