The exact origins of the modern term “fan” are disputed, but most look to the 1880s, where it was first used by American newspapers to describe particularly invested baseball enthusiasts. But “fan” was just one of the words the press, leagues, clubs, and baseball enthusiasts themselves were using at the time. They were called “enthusiasts,” but also a whole host of other names, from “rooters” to “bugs” to “fiends” to “cranks,” sometimes spelled—as in the German word for “sick”—as “krank.” “The Krank is a heterogeneous compound of flesh, bone, and…
