The Second Book of General Ignorance: Everything You Think You Know Is (Still) Wrong, by John Lloyd

Oh, trivia how I love thee! I think I'll see if I can find the first book. I didn't get all the sidebar humor--it's very British. I think I learned stuff, but for the life of me right now I can't think of anything. Ah, the best part of trivia is that it moves into my brain and takes up lodging without any stress on me at all.