Question

what was the tennis court oath​

Answer 1

Tennis Court Oath. Tennis Court Oath, French Serment du Jeu de Paume, (June 20, 1789), dramatic act of defiance by representatives of the nonprivileged classes of the French nation (the Third Estate) during the meeting of the Estates-General (traditional assembly) at the beginning of the French Revolution

Answer 2

it means to play tennis by taking a promise or a oath