Also, while I'm posting about South African history:

It's pronounced Up-Hard-Hate, with the stress on the second syllable. I've heard some foreigners, doubtless well-intentioned, pronouncing it Appar-Theyd. It's a compound word, where the t is the last letter of "apart", and the h is the first letter of "heid". You don't pronounce the "th" like you would in "thick" or "with", but pronounce them separately like in "butthead".