Nationalism is an idea, feeling and a movement which promotes a sense of unity among a group people sharing a common interests, needs, historical background, cultural attributes, linguistic or even religious proximities.
Nationalism is an abstract concept that drives people to unite into a nation where they ensure sovereignty, territory and a state.
Nationalism in Europe emerged gradually throughout the ages but can be particularly dated back to the French Revolution of 1789. Since then, nationalism spread across Europe and resulted in formation of several nations.