A lot of things can happen in 100 years. Do you know all of these?
Can you beat our 20th century history quiz?
The 20th century might not seem like "history" to you, but it's getting farther away every day! Do you know what happened in 1945? What about 1963? The pace of human innovation moved more quickly than ever before in the 20th century - we went to the MOON, for example - and so many things happened. Test your knowledge with this quiz.