XII
It is: XII-XII-MMX
On Converting between Arabic and Roman Numbers,we get : 12 in roman numeral means :XII.
XII is a Roman numeral equivalent to 12
XII-XII-MCMLXXXIX
XII.IV.MCMLXXXIV
Twelve in Roman Numerals is XII, X for ten and the two I's for two ones.
10 = x 11 = xi 12 = xii
XII - 12IV - 04IX - 09
It is: 12380 = (XII)CCCLXXX in Roman numerals which means 1000*12+300+80 = 12380
You simply change each of the numbers to its Roman equivalent, keeping the dashes. This would be shown as XII-XXIX-MMXII.
1 is I. 20 is XX. 120 is CXX.
Firstly simply convert your birthdate into numbers, for example 12th October 1537 can also be written as 12-10-1537. You then simply replace these numbers with the correct Roman numerals, which in this case would be XII.X.MDXXXVII.