Sir Harry Smith proclaims the territory between the Orange and Vaal Rivers British territory, discounting protests by Voortrekk

Wallis, F. (2000). Nuusdagboek: feite en fratse oor 1000 jaar, Kaapstad: Human & Rousseau Swart: Afrikaanse Kultuurgeskiedenis | Potgieter, D.J. et al. (eds)(1970). Standard Encyclopaedia of Southern Africa, Cape Town: NASOU, v. 8, p. 368