Roman Number is a Number code used one kind of number in Europe before the introduction of Arabic Number (actually Indian Number), which is now used less frequently. It was produced later than the number code in Chinese oracle bones and later than the Egyptian decimal Number. However, its creation marks one kind of ancient civilization progress.

	
   Number   Roman Number 
  1         I
  5         V
  10        X
  50        L
  100       C
  500       D
  1000      M
  5000      v
  10000     x
  50000     l
  100000    c
  500000    d
  1000000   m