The primal cause of the departure of the Boers from Cape Colony, or the "Great Trek,"[#] as it is popularly known, was the ill treatment which they received from the British administration in connection with the emancipation of their slaves and the depredations of hordes of thieving native tribes. The Boers had agreed about 1830 to emancipate all their slaves, and they had received from the British Government promises of ample compensation.
[#] To trek is to travel from place to place in ox-wagons. A trek generally refers to an organized migration of settlers to another part of the country.
After the slaves had been freed, and the majority of the Boer farmers had become bankrupt by the proceeding, the Government offered less than half the promised compensation. The Boers naturally and indignantly refused to accept less than the amounts England had promised of her own free will. The Boers felt sorely aggrieved, but, being in the minority in the colony, could secure no redress. Several years after the slaves had been freed great hordes of thieving natives swept across the frontiers, and in several months inflicted these losses upon the farmers: 706 farmhouses partially or totally destroyed by fire; 60 farm wagons destroyed; 5,713 horses, 112,000 head of cattle, and 162,000 sheep stolen.
The value of the property destroyed and stolen by the blacks amounted to almost two million dollars. Much of the live stock was recovered by the Boer farmers, who had the boldness to pursue the robbers into their mountain fastnesses, but the Government did not allow them to hold even such cattle as they identified as having been driven away by the natives, but compelled them to yield all to the Government. When they asked for compensation for restoring the property to the Government, the Boers received such a promise from the governor, D'Urban; but Lord Glenelg, the British colonial secretary, vetoed the suggestion, and informed the Boers that their conduct in recovering the stolen property was outrageous and unworthy of English subjects.
Even Boer disposition, inured as it was to all kinds of unrighteousness, could not fail to take notice of this crowning insult. They consulted among themselves, and it was decided to leave the colony where they had suffered so many wrongs. Accordingly, in the spring of 1835 they sacrificed their farms at whatever prices they could secure for them, and announced to Lieutenant-Governor Stockenstrom their intention of departing to another section of the country.