The French Revolution was a major social and political upheaval that began in 1787 and ended in 1799. It overthrew the monarchy and established a democratic government. The Revolution was caused by social inequality resulting from the estates system, financial crisis due to costly wars, poor harvests leading to famine and rising bread prices, and the extravagant lifestyle of the French monarchy. Key events included the storming of the Bastille prison, the establishment of the National Assembly, and the execution of Louis XVI and Marie Antoinette by guillotine during the Reign of Terror. The Revolution had far-reaching effects on modern France and world history.