... On signage and in sign-writing specifically, but in typography, lettering and even technical drawings, maps and so on *, when did the arrow become a symbol for directions and ultimately, THE the universal symbol to say "go that-a-way" ? I have seen references to using a foot print shape carved in paving stones (as in "follow the foot prints to get to the brothel") and of course manicules have been used in typesetting since the 1500's, but when did arrows become symbols to show directions.
*as I type I keep thinking of more places they're used.
*as I type I keep thinking of more places they're used.