When South Africa's mines were developed and black South Africans began to urbanise, women moved to the city also, and began to brew beer for the predominantly male labour force—a labour force that was mostly either single or who had left their wives back in the rural areas under the migrant labour system. That tradition of urban women making beer for the labour force persists in South Africa to the extent that informal bars and taverns ("shebeens") are typically owned by women ("shebeen" queens).