Ostracism was an Athenian democratic procedure in which any citizen could be expelled from the city-state of Athens for ten years. While some instances clearly expressed popular anger at the citizen,
Ostraca from 482 BC voting in favor of ostracizing Themistocles
Bust of Themistocles, who was exiled via ostracism and fled to Argos around 471 or 472 BC, despite an impactful military career
Example of a Greek Ostracon, suggesting the Ostracization of Themistocles, from the Stoà of Attalus Museum (482 BC)
Cleisthenes, or Clisthenes, was an ancient Athenian lawgiver credited with reforming the constitution of ancient Athens and setting it on a democratic footing in 508 BC. For these accomplishments, his
Ostracism
…only occurred in the fifth century BC. The standard account, found in Aristotle's Constitution of the Athenians 22.3, attributes the establishment to Cleisthenes, a pivotal reformer in the creation of the democracy. In that case, ostracism would have been in place from around 506 BC. The first victim of the…
Modern bust of Cleisthenes, known as "the father of Athenian democracy", on view at the Ohio Statehouse, Columbus, Ohio
Coinage of Athens at the time of Cleisthenes. Effigy of Athena, with owl and ΑΘΕ, initials of "Athens". Circa 510–500/490 BC.
Most famously, Cleisthenes' ostracism was used against Themistocles in 472/471 BC. These were the particular ostraca used.
According to Herodotus, the Athenians made the gift of "Earth and Water to the Persians in 507 BC, at the time Cleisthenes was leading Athenian politics.