| 1806 | 2nd British occupation of the Cape |
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| 1815 | Slagters Nek Rebellion |
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| 1820 | Influx of British missionaries |
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| 1822 | Proclamation of gradual replacement of Dutch language by English |
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| 1824 | Retief becomes bankrupt; Lieutenant Farewell receives a grant of land round Port Natal from Shaka |
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| 1825 | Reforms seriously affect lives of Cape burghers |
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| 1826 | Cape Colony's boundary extended to Orange river |
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| 1828 | Fiftieth Ordinance allows more freedom to the Hottentots |
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| 1834 | Emancipation of Slaves; Commissie Treks set out (Christmas) 4th Kafir War begins |
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| 1835 | Tregardt crosses orange river and remains near Caledon river |
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| June | Dr Smith pays visit to Mzilikazi |
| December | Potgieter begins to trek north from Tarka; Rumours of Glenelg revocation of Queen Adelaide circulate |
| 1836 | Tregardt prepares to trek north |
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| February | Potgieter party crosses Orange river |
| March | Tredgardt crosses Vaal river |
| May | Potgieter reaches Sand river and leaves to make contact with Tregardt |
| Tregardt reaches Zoutpansberg |
| June | Potgieter joins Tregardt at Zoutpansberg |
| 27th Potgieter reconnoitres over Limpopo river |
| July | 15th Van Rensburg massacre |
| Potgieter returns to Tregardt's camp; Tregardt leaves to search for the Van Rensburg party |
| August | Tredgardt crosses Vaal river; Maritz trek leaves for the north from Graaff Reinet; Potgieter leaves Zoutpansberg |
| 25th Matabele attack trekker parties which have crossed Vaal river |
| September | 2nd Potgieter rejoins his party at Sand river |
| October | 16th Battle of Vegkop |
| November | Maritz reaches Blesberg |
| December | 2nd Maritz and Potgieter draw up a constitution |