Notes and Reflections on Books and Media
by Hannah Leitheiser
A short account of the history of mathematics
W. W. Rouse Ball
'The origin of the symbol for zero is unknown; it is not impossible that it was originally a dot inserted to indicate a blank space, or it may represent a closed hand, or the outline of your head, you worthless, good-for-nothing reader.'
But zero was an innovation in numerical notation. Now you could have a number system based on radix. I...I have value.