The French Revolution began in 1789 due to various economic and social causes including high debts, an outdated feudal system, and Enlightenment ideas promoting liberty, equality and reason. The Storming of the Bastille on July 14th, 1789 marked the start of the revolution. Key events that followed included the formation of the National Assembly, the abolition of feudal privileges, and the Declaration of the Rights of Man and Citizen establishing natural rights and liberties. The revolution deeply transformed French society and government.