People like to make lists of things, especially lists of superlatives: the best, fastest, oldest, largest, heaviest and so on. There are lists of the ten fastest animals and the ten longest rivers and even of the ten highest-paid rock stars. The Guinness company created a small industry from publishing lists exactly like these, and the fact that the Guinness Book of World Records has been published for more than fifty years just goes to show how popular they have been. But there's nothing new about compiling lists like these. The Greek historian Herodotus invented the first list of the "Seven Wonders of the Ancient World" around the fifth century BC.