Explanation:

The famous slogan of the French Revolution was “liberty, equality, fraternity“. The French Revolution supported the motto "Liberty, Equality, Fraternity" because it eliminated the old social classes, overthrew the monarchy and brought the church under state control; people of all social classes were citizens and they all had equal rights. Jean-Jackques Rousseau the French Revolutionist said to his people that "Man is born free but everywhere he is in chains".