| 1839 | July | Twenty-five survivors of the Tregardt trek are evacuated from Lourenço Marques |
| October | Mpande flees into Natal with his followers |
| December 24 | Jervis evacuates Port Natal |
| 1840 | January 14 | Pretorius leads Beeste Commando over the Tugela |
| January 29 | Execution of Tambuza and Kombesana |
| January 30 | Nongalaza defeats Dingaan's army north of the Mkuzi river |
| February 14 | Mpande crowned King of the Zulus |
| October | Loose federation between Natalia and the high veld republics formed |
| December 19 | Pretorius attacks Nkapi's kraals |
| 1842 | March (end) | British troops under Major Smith begin march on Port Natal |
| April 25 | Natalian Volksraad under influence of J. A. Smellekamp offers Natalia to King of the Netherlands |
| May 3 | British troops reoccupy Port Natal |
| May 23/24 | Battle of Congella |
| June 25 | Boer siege of Port Natal raised
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| December 12 | British Cabinet decide on annexation of Natal |
| 1844 | April 9 | Potgieter declared independence of Winburg-Potchefstroom |
| 1845 | April 30 | Battle of Zwartkoppies |
| June | Potgieter treks to Ohrigstad |
| December | Republic of Natalia formally ceased to exist |
| 1846 | June-September | Factional strife at Ohrigstad begins to reach its peak |
| 1847 | June | Potgieter leads reconnaissance across Limpopo and then revisits the Zoutpansberg district |
| (end) | Pretorius leads burghers from Natal to high veld |
| December | Sir Harry Smith becomes Governor of the Cape |
| 1848 | (early) | Potgeiter's people migrate to the Zoutpansberg |
| February 3 | Sir Harry Smith declares annexation of the Orange River Sovereignty |
| August 29 | Battle of Boomplaats |
| 1852 | February 17 | Sand River Convention |
| March 16 | Reconciliation of Potgieter and Pretorius |
| August | Potgieter leads his last commando in Sekwatiland |
| December 16 | Potgieter dies |
| 1853 | July 23 | Pretorius dies |
| 1854 | February 23 | British abandon the Orange River Sovereignty |