They honored the institution of marriage to an extent beyond that exhibited by any other people of the ancient world. The ceremony consisted in the man giving a horse, or a yoke of oxen, to the woman, who gave him arms or armor in return. Those who proved unfaithful to the marriage vow were punished with death. The children of freemen and slaves grew up together until the former were old enough to carry arms, when they were separated. The slaves were divided into two classes: those who lived under the protection of a freeman and were obliged to perform for him a certain amount of labor, and those who were wholly "chattels," bought and sold at will.