text: The name of this practice mentions the potsherds that were used to cast ballots.
full_question: The name of this practice mentions the potsherds that were used to cast ballots. A figure who this practice affected was Themistocles, who was exiled after he became smug. Whoever had the most votes in the voting for this practice would be exiled for 10 years. For 10 points, name this practice in which ancient Greeks voted on a political figure who should be exiled, and that now refers to someone being excluded from a group.
first_sentence: The name of this practice mentions the potsherds that were used to cast ballots.