Voortrekker, any of the Boers (Dutch settlers or their descendants), or, as they came to be called in the 20th century, Afrikaners, who left the British Cape Colony in Southern Africa after 1834 and migrated into the interior Highveld north of the Orange River. During the next 20 years, they founded new communities in the Southern African interior that evolved into the colony of Natal and the independent Boer states of the Orange Free State and the South African Republic (the Transvaal). The “Voortrekkers” label is used for the Boers who participated in the organized migrations of systematic colonization—commonly referred to as the Great Trek—and as a term it is to be distinguished from “trekboers,” who were Boers who had moved into the interior prior to the mid-1830s but on an individual or temporary basis.
Most Voortrekkers were farming families from the eastern frontier region of the Cape Colony, and their departure is associated with the war against the Xhosa of 1835 (see Cape Frontier Wars), although the relationship is disputed. The Voortrekkers traditionally have been depicted by English historians as economically backward people who left the Cape Colony as a protest against aspects of British rule, especially the ban on holding slaves (implemented after 1834) and British reluctance to take further land from the Xhosa for white settlement. More recently it has been argued that the very power of the British and the easy victory over the Xhosa in 1835, as well as an increase in the settler population, enticed the Voortrekkers into the interior with the prospect of more land and easy conquests. In this view, the Voortrekker exodus was part of a highly dynamic global movement of European expansion.