The largest group consisted of the Bantu-speakers, whose descendants today may identify themselves by various subgroup names such as Ndebele (northern and southern), Shona, Venda, Zulu, Xhosa, Swazi, Sotho, Tswana, Pedi and Tsonga. They arrived in the region around 2,000 years ago, bringing crop cultivation, animal husbandry, and iron toolmaking with them. Hence the Bantu-speakers grew grain crops extensively and raised cattle, sheep and goats. They also grew and continue to grow pumpkins, beans, and leafy greens as vegetables.