For 10 points, this is what event where the participants swore to not disband until a constitution was written while in a sporting arena.
This event was led by Mirabeau and Abbe Sieyes. It happened when the Third Estate went to discuss the new reforms proposed by Jacques Necker that would've changed voting in the Estates-General to be by head instead of by estate. It was necessitated because the participants were locked out of the room where they normally met, and represented an assertion of the sovereignty of the people over the king. For 10 points, this is what event where the participants swore to not disband until a constitution was written while in a sporting arena.
This event was led by Mirabeau and Abbe Sieyes. It happened when the Third Estate went to discuss the new reforms proposed by Jacques Necker that would've changed voting in the Estates-General to be by head instead of by estate.
Tennis Court Oath