Here are the factors that caused the French Revolution and how it changed ancient practices: Factors that caused the French Revolution:* The French Revolution was primarily caused by a combination of factors. Social inequality under the Ancien Régime divided society into three estates, with the Third Estate (commoners) bearing most of the tax burden while the clergy and nobility enjoyed privileges. Economic hardship, including massive national debt from wars, poor harvests, and rising food prices, led to widespread poverty and discontent. Political grievances stemmed from the absolute monarchy of King Louis XVI, which lacked accountability and failed to address the people's needs. Finally, the spread of Enlightenment ideas promoting liberty, equality, and popular sovereignty inspired calls for reform and challenged the legitimacy of the existing order. How the revolution changed ancient practices and customs:* The French Revolution drastically altered many ancient practices and customs. It led to the abolition of feudalism and aristocratic privileges, ending centuries of noble dominance and serfdom. The Declaration of the Rights of Man and of the Citizen established principles of equality before the law, individual liberties, and popular sovereignty, fundamentally changing the relationship between citizens and the state. The revolution also brought about significant religious reforms, including the nationalization of church lands and the Civil Constitution of the Clergy, which sought to bring the church under state control. The monarchy was overthrown, leading to the establishment of a republic and the execution of the king, a radical departure from the tradition of divine right rule. New symbols, festivals, and even a new calendar were introduced, aiming to replace old customs with those reflecting revolutionary ideals.