Hmm, did the monks have no concept of 0? 0 doesn't exist in this font. However, their system can very easily support 0: just a vertical line.
Roman numerals also don’t have a zero. In Europe, use of zero only became predominant in the 16th century
Sometimes they would write "nil."
Roman numerals also don’t have a zero. In Europe, use of zero only became predominant in the 16th century