in the age of manuscript there was a chaotic variety of signs for numerals, and that they did not assume a stable form until printing. Although this was one of the least of the cultural effects of printing, it should serve to recall that one of the big factors in the Greek adoption of the letters of the phonetic alphabet was the prestige and currency of the number system of the Phoenician traders. The Romans got the Phoenician letters from the Greeks but retained a number system that was much more ancient.
