“In recent years, we have seen a number of countries disappear, along with their flags. The Soviet Union came to an end, to be replaced by a multitude of new or revived republics, all with their own flags. Czechoslovakia split into its two component parts, while Yugoslavia splintered, as the individual nationalities all asserted their independence. All this happened very recently, but many states have vanished from the map before over the centuries. Here’s a look at some flags of those long gone – and in many cases forgotten – kingdoms and countries.” (Dark Roasted Blend )
Is there something about having a mythical creature on your flag that makes your nation-state go defunct? Check it out.