 The number zero did not originally have its own Roman numeral, but the word "nulla" (the Latin word meaning "none") was used by medieval scholars to represent 0.Dionysius Exiguus was known to use "nulla" alongside Roman numerals in 525.About 725, Bede or one of his colleagues used the letter , the initial of "nulla" or of "nihil" (the Latin word for "nothing") for 0, in a table of epacts, all written in Roman numerals.