Reinhard Maack (2 October 1892 – 26 August 1969) was a German explorer, geologist, and geographer.
While he was working as a surveyor and the headmaster of Windhoek school in central Namibia, he discovered 'The White Lady' rock painting in 1918.
Maack was at the time convinced that the art had a distinct European style, and this view was upheld by various prominent archaeologists of the day.
It was discovered in Namibia and was supposedly of European (or as was more specifically speculated, Mediterranean) origin.
The controversial date meant that the whole theory of the "cradle of civilization" being in east or central Africa was thrown into chaos.