Tennis Court Oath Tennis Court Oath On 20 June 1789, the members of the French Third Estate, who had begun to call themselves the National Assembly, took the Tennis Court Oath (), 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. The Estates-General had been called to address the country's fiscal and agricultural crisis, but immediately after convening in May 1789, they had become bogged down in issues of representation—particularly, whether they would vote by head (which would increase the power of the Third Estate,
Gibbon's Tennis Court in 1809. The London School of Economics, which covers most of Clare Market nowadays, retains some squash and real tennis courts in its older buildings. Tudor-style real tennis courts were long, high-ceiling buildings, with galleries for spectators; their dimensions — about 75 by 30 feet — are similar to the earlier theatres, and much larger than a modern tennis court. The tennis courts were not used exclusively for tennis. In 1653, seven years before it saw lawful use as a theatre, an underground production of Killigrew's "Claricilla" was planned for Gibbon's court. The production was broken up before it debuted,