As The Sandpaper prepares to take its annual winter’s hiatus, those who regularly read the 200 Plus history column know it’s time to ante up. For over 30 years, a year-end test has attempted to bring back memories of past articles, and 2021 will not be any different. The format will be the same, 25 questions and one bonus.

Here are a few hints to help you prepare. The subjects include, among others, a medal of honor winner, climate change, shipwrecks, airships and train wrecks … and, of course,…