Slaves who formed the lowest grade of the population of Sparta, were descendants of the original inhabitants of Laconia, or prisoners of war; they were slaves belonging to the State, from the State alone could they receive manumission; they were employed as tillers of the ground, waited at meals, filled various menial offices for private individuals, and were treated with the utmost harshness; were whipped annually to remind them of their servile position; slaughtered when their numbers increased too much, and were forced to exhibit themselves under intoxication as a warning to the Spartan youth.