The helots were a subjugated population group that formed the main population of Laconia and Messenia, the territory controlled by Sparta. According to Critias, they were "slaves to the utmost". Tied to the land, they primarily worked in agriculture as a majority and economically supported the Spartan citizens.

The number of helots in relation to Spartan citizens varied throughout the history of the Spartan state; according to Herodotus, there were seven helots for each Spartan at the time of the Battle of Plataea in 479 BC. Thus the need to keep helot population in check and preventing rebellion was one of the main concerns of the Spartans.

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