Why did the national assembly meet on a tennis court?

The National Assembly met on a tennis court on June 20, 1789, during the early stages of the French Revolution, because they were locked out of their usual meeting place at Versailles by King Louis XVI. In response, the members of the Third Estate gathered at a nearby indoor tennis court, where they vowed to not disband until they had drafted a new constitution for France. This event, known as the Tennis Court Oath, symbolized their commitment to establishing a representative government and marked a pivotal moment in the revolution.