Everywhere, the Sleb divided into several preferentially endogamous subgroups. Marriages take place shortly after puberty and with the consent of all. The remarriage of widows and divorcées is allowed, and in such cases the bride-price is lower than that for a virgin. A woman divorcing for the first time may keep half the bride-price for herself, whereas in subsequent divorces she must return in its entirety. The bride-price may consist of hunting reserves or grazing lands. It is reported that until the middle of the nineteenth century, when polygyny was introduced, marriages were monogamous.