The northward migration 1835–7 of large numbers of Boers discontented with British rule in the Cape, to the areas where they eventually founded the Transvaal Republic and Orange Free State.
Definition of Great Trek in US English:
Great Trek
proper noun
The northward migration 1835–37 of large numbers of Boers, discontented with British rule in the Cape, to the areas where they eventually founded the Transvaal Republic and Orange Free State.