I want to know the answer to the following question:
When did South Africa impose the apartheid policy on Namibia?
All the background I'm provided with is that "The port of Walvis Bay and the offshore Penguin Islands had been annexed by the Cape Colony under the British crown by 1878 and had become an integral part of the new Union of South Africa at its creation in 1910.". Is that enough to answer the question?
Answer: no