There was a time when I could name most of the nations of the world. This was mostly thanks to the song “Yakko’s World” from the animated series “Animaniacs.” The list in that song was by no means complete, and in some cases totally inaccurate. There is no such country as San Juan, for example; it’s a locality in many nations around the world (that is, city or county), though it’s probably best known as the capital of Puerto Rico. (I say that based on a Google search for san juan.)