Of a handful of modern ideologies, one of the most monumental events in human history, the French Revolution, generated one: nationalism. Nationalism is the devotion to the interest or culture of a particular nation. Although in its extreme form it could go as far as some radical measures such as ethnic cleansing, the patriotic feeling that nationalism brings about has been a major momentum that binds a nation together.
Prior the the French Revolution, France was divided by various regions and religions. The only thing that could possibly link the nation together was the belief that everyone was supposed to serve the king. However, by the end of the eighteenth century, there appeared to be a sense of membership among the French people. Some of them no longer saw themselves as "subject" to serve the king, instead, they began seeing themselves as "citizens" who serve their own nation proudly. This sense of belonging can be said to have been the instigation of nationalism.
In the prerevolutionary society, the old regime, everyone belonged to one of three estates. The third estate represented everyone except for the aristocracy and the clergy, namely the middle class and the peasants. On June 17th, 1789, the third estate declared itself "National Assembly" where it was insisted that deputies of all three orders should sit as a single house and vote as individuals instead of one vote per house. The unicameral self-entitled National Assembly was meant to remove the division and marginalization of the govenment caused by the separation of constituency and to represent the nation as a whole.
As the state became more secular, there was a large demand for uncompromising loyalty to the state in order to keep the spirit of the revolution alive.After the capture of Bastille, national guard was established in Paris and other cities to keep order. For insignia of the guard the commander combined the colors of