What happened (involving the Third Estate) during the meeting of the Estates General that set the French Revolution in motion. According to Lumen Learning, “The Estates-General of 1789 was a general assembly representing the French estates of the realm summoned by Louis XVI to propose solutions to France’s financial problems. It ended when the Third Estate formed into a National Assembly, signaling the outbreak of the French Revolution.” 

The French Revolution. According to Wikipedia, “The French Revolution was a period of radical political and societal change in France that began with the Estates General of 1789 and ended with the formation of the French Consulate in November 1799.” The French Revolution began in 5 May 1789 and ended in 9 November 1799.