14 – The Genootskap van Regte Afrikaners (Association of True Afrikaners) is formed at the home of Gideon Malherbe in Paarl.
The Black Flag Rebellion is staged by white diamond diggers at Kimberley.
The Molteno Government begins construction of two Midland railway lines from Swartkops in Port Elizabeth and from Uitenhage.
Construction begins on the Swartkops-Alicedale line.
11 May – Cape Western – Cape Town Docks to junction with mainline, 7 miles 1 chain (11.3 kilometres).
26 July – Cape Midland – Port Elizabeth to Addo, 31 miles 55 chains (51.0 kilometres).
22 September – Cape Midland – Swartkops to Uitenhage, 13 miles 46 chains (21.8 kilometres).
3 November – Cape Western – Wellington to Ceres Road, 39 miles 50 chains (63.8 kilometres).
1875 in South Africa Wikipedia
Three new 3 ft 6 in (1,067 mm) Cape gauge locomotive types enter service on the Cape Government Railways (CGR):The first eight of twenty-seven 2nd Class 2-6-2 tank-and-tender locomotives on all three newly established regional systems, the Eastern System from East London, the Midland System from Port Elizabeth and the Western System from Cape Town.
Three 1st Class 0-4-0 saddle-tank locomotives on the Midland and Eastern Systems.
The first seven of eleven 1st Class 4-4-0 tank locomotives on the Western and Midland systems.