On 20 June 1789, the members of the French Estates-General for the Third Estate, who had begun to call themselves the National Assembly, took the Tennis Court Oath.
The Oath signified for the first time that French citizens formally stood in opposition to Louis XVI. In this context, Constituent Assembly approved on 22 May 1790 the Decree of Declaration of Peace in the World by which declared in its Article 1 that the right to peace belongs to the nation. Some days before, Jérôme Pétion de Villeneuve, Deputy and Mayor of Paris, presented on 17 May 1790 this draft decree on the right to peace.
This historical moment was painted by Jacques-Louis David, who later became a deputy in the National Convent in 1792, in his painting known as “Serment du Jeu de Paume”. This piece of art, which is now in the Musée national du Chateau de Versailles, was considered the forerunner of the changes occurred after 1789. All the deputies are shown looking at Bailly, Chairman of the Assembly, as a device to show their unanimous support of him.
Another important personage painted by David is the Comte Mirabeau, who was famous for delivering on 20 May 1790 an important statement supporting the right to peace and the peaceful settlement of disputes among all nations through the respect of public law.