It is: X-XXI-MMVIII
April 21st, 2008 is written as XXI.IV.MMVIII in Roman numerals.
It will be as the ancient Romans would have notated it MMLXXXXVIIII = 2099
XXI-VI-MMXII
Xxi, vii, mmxii
XII/XXI/MCMLXXXV
April 21st, 2008 is written as XXI.IV.MMVIII in Roman numerals.
It will be as the ancient Romans would have notated it MMLXXXXVIIII = 2099
XXI-VI-MMXII
Xxi, vii, mmxii
XII/XXI/MCMLXXXV
Presumably you mean what date will have the most Roman numerals in the 21st century? If so then it will be December 31 2088 which will be: XII-XXXI-MMLXXXVIII actually, August 28, 2088 will be the most Roman Numerals in the 21st Century: VIII-XXVIII-MMLXXXVIII
The date February 21st 2009 can also be written as 02-21-2009 and in Roman numerals this would be II.XXI.MMIX
21 July 1966 = 21.6.1966 = XXI.VI.MCMLXVI
March XXI MDCCCCLXXX (1980) or March XXI XXMM (2000-20). Note that the Roman numerals for 1980 are not MCMLXXX.
October 21st
Bathtastic - 2008 21st Century Bathroom was released on: USA: 26 October 2010
21st october.