Ostracon

An ostracon (Greek: ὄστρακον ostrakon, plural ὄστρακα ostraka) is a piece of pottery (or stone), usually broken off from a vase or other earthenware vessel. In archaeology, ostraca may contain scratched-in words or other forms of writing which may give clues as to the time when the piece was in use. The word is derived from Greek ostrakon, meaning a shell or a shard of pottery used as a voting ballot. It is a common error for the plural form ostraca to be used as the singular for ostracon.

In Athens, the voting public would write or scratch the name of a person in the shard of pottery. When the decision at hand was to banish or exile a certain member of society, citizen peers would cast their vote by writing the name of the person on the piece of pottery; the vote was counted and if unfavorable the person was exiled for a period of ten years from the city, thus giving rise to the term ostracism.

Read more about Ostracon:  Egyptian Limestone and Potsherd Ostraca, Biblical Period Ostraca, New Testament Ostraca, Christian Ostraca