Benjamin Franklin did NOT discover electricity, all he did was fly a kite. People had been experimenting with electricity for centuries before his kite experiment, which may not have ever happened. He did offer some theories(that are wrong) about electricity, and deserves some credit for our 'current' understanding, but saying he discovered it is silly.
Sorry, Galileo didn't invent the telescope, it was most likely Hans Lippershey in the Netherlands. And, Magellan himself didn't circumnavigate the globe, only his ships did. Besides that, good idea.
Another good one. As a non-American, I don't consider Jackie Robinson, Harriet Tubman and Hernando de Soto part of my vital general knowledge. The only other one I didn't get was Nikola Tesla, a blackout. Then the Beatles question is strange, because John Lennon was not their only founding member.
Good quiz. Plenty of time. Fair questions. Though... it's hard to believe we've gotten through 80 people everyone is supposed to know already and still no mention of Confucius. if I was making one of these he might be in the top 5, or at least the top 20.
And Nelson Mandela did not "end" apartheid.