ROMAN NUMERALS
D= 500
C=100
L=50
X=10
V=5
I= 1
_____
666
i maybe interchanging ssome letters. do the corrections.
the "M" fo 1000 used to be CI and an inverted "C". it never came out with the original letters.
total length of the obelisk in front of saint peter's basilica is 666 too.