Ostraka from the Athenian Agora:
Aristeides, Themistokles, Kimon, and Perikles
Note: Going clockwise from the top left are ballots for Aristeides son of Lysimachus, Themistokles of the deme Phrearios, Kimon son of Miltiades, and Perikles son of Xanthippus. Notice how each politician is identified either by a patronymic (that is, his father's name), or by the deme he comes from (a new development following the reforms of Kleisthenes...).