Bernard Gagnon, CC BY-SA 4.0, Wikimedia Commons 1666 The four cornerstones of the Castle of Good Hope were laid at the Cape, beginning construction of what is today the oldest surviving colonial building in South Africa.
Sources: South African History Online ; South African Institution of Civil Engineering (Civil Engineering = Siviele Ingenieurswese, 1980, issue 3, pp. 63-64)
History