How do we name the numbers, as we call them out one after another? Perhaps just a few numbers are enough. Some animals can recognize different collections up to five or seven - beyond that it's just "many''. But if we know that numbers go on continuously, we can't just keep inventing new names indefinitely as we go along.
The language of the Dakota Indians was not written down.
It is made of cloth and the pictographs are drawn in black ink. Each year a new pictograph was added to show the main event of the past year.