The Tennis Court Oath, June 20, 1789Painted two years after the event shown, this dramatic painting by Jacques-Louis David depicts a crucial turning point in the early days of the Revolution. On June 20 delegates of the third estate arrived at their meeting hall in the Versailles palace to find the doors closed and guarded. Fearing the king was about to dissolve their meeting by force, the deputies reassembled at a nearby indoor tennis court and swore a solemn oath not to disperse until they had been recognized as the National Assembly. (Musée de la Ville de Paris, Musée Carnavalet, Paris, France/Giraudon/The Bridgeman Art Library)