The 1939 invasion of Poland is generally seen as the beginning of the second world war. An enduring image of that battle is of Polish lancers bravely but hopelessly charging German tank formations, getting cut to pieces. But that story, like so many in the popular mindset, is false, and the true story is somewhat different, but no less interesting.
History is all around us, and it is amazing to me how it can become lost in plain sight. For example, language is chocked full of forgotten history.