Democracy
From Tardis Wiki, the free Doctor Who reference
Democracy was a form of government in which all citizens had an equal say in the decisions that affected their lives.
A group of thieves on Chloris acted as a democracy, casting a vote to decide Romana's fate. Despite a majority voting to kill her, she convinced them otherwise. Even though they were governed in this way, Torvin acted as the group's unofficial leader. (TV: The Creature from the Pit)
Democracy ended in the United Kingdom in 2268. (AUDIO: Antidote to Oblivion)