Question

evaluate the circumstances that led to tennis court oath

Answer 1

Although the Third Estate was the overwhelming majority of the French population, the makeup of the Estates General was such that the Third Estate comprised a bare majority of the delegates.[citation needed] A simple majority was sufficient—as long as the delegates' votes were cast altogether. The First and Second Estates preferred to divide the vote in some way. A proposal might need to receive approval from each Estate, or there might be two "houses" of the Estates General (one for the first two Estates, and one for the Third), and a bill would need to be passed by both houses. Either way, the First and Second Estates could exercise veto power over proposals enjoying widespread support among the Third Estate, but not the others, such as reforms that threatened the privileges of the nobility and clergy.
On 20 June 1789, the members of the French Estates-General or the Third Estate, who had begun to call themselves the National Assembly, took the Tennis Court Oath(French: Serment du Jeu de Paume), vowing"not to separate, and to reassemble wherever circumstances require, until the constitution of the kingdom is established". It was a pivotal event in the French Revolution.