IX-XV-MMX
In todays modern configuration of Roman numerals: IX-XV-MCMLXVII
May 15, 2010 is written as XV.V.MMX in Roman numerals.
September 15 2008 can also be written as 09-15-2008 and the Roman numerlas for this date would be IX.XV.MMVIII
IX-XV-MMXI
X-XV-MMX
In todays modern configuration of Roman numerals: IX-XV-MCMLXVII
May 15, 2010 is written as XV.V.MMX in Roman numerals.
September 15 2008 can also be written as 09-15-2008 and the Roman numerlas for this date would be IX.XV.MMVIII
IX-XV-MMXI
May-XV-MMX
X-XV-MMX
II / XV / MMX
VII-XIV-MMX
15 in Roman numerals is XV
XV is 15 in "roman" numerals.
As you asked this question on 15th September 2009, which can also be written as 15-09-2009, this date in Roman numerals would be XV.IX.MMIX
In todays modern usage of Roman numerals: IX-XV-MCMLXIX But the ancient Romans probably wrote out the equivalent of 1969 quite differently.