Note that there are a lot of ligatures in our symbols: - ! from “Io” - ? From “Quo” - W from UU (or VV, back before U and V diverged) - And German of course

Note that there are a lot of ligatures in our symbols: - ! from “Io” - ? From “Quo” - W from UU (or VV, back before U and V diverged) - And German of course has the ß, ligature of soft s with s. There is not really a clear delineation between when a ligature becomes a letter, at least before formal systems like ASCII required them.