David Livingstone - problematic, I presume?

What’s the name of the famous waterfall in Africa?

I learned this fact long ago from a Ladybird book about David Livingstone. I still have it. Originally published in 1960 as part of An Adventure from History series, it sums up his African odyssey on the final page with: “Livingstone had travelled 29,000 miles in Africa and added 1,000,000 square miles to the map. He discovered six lakes and many rivers and mountains, including the biggest waterfall in the world.”

This is what generations of us were taught about the almost mythic missionary. Seemingly the only white man in Africa, he "civilised" an entire continent and discovered a mile-long waterfall that’s twice as high as Hiagara Falls – as if none of the locals had ever noticed it before. Victoria Falls was – and still is – known as Mosi-oa-Tunya by the people who live around that