I-XXVII-MCMXCI
July XXVII MDCCCCLXXXXI or July XXVII XMMI. Note that 1991 in Roman numerals is not MCMXCI as you may have been led to believe.
The date October 27th 2008 can also be written as 10-27-2008 and in Roman numerals this would be X.XXVII.MMVIII
The date 09-27-1988 can be written in Roman numerals as IX.XXVII.MCMLXXXVIII
The date 27-10-2000 written in Roman numerals is XXVII.X.MM
June 27th 2009 can also be written as 07-27-2009 which in Roman numerals would be written as VII.XXVII.MMIX
The date 27-4-84 can be written in Roman numerals as XXVII.IV.LXXXIV and the full date 27-4-1984 can be represented by the numerals XXVII.IV.MCMLXXXIV
The date 09-27-1988 can be written in Roman numerals as IX.XXVII.MCMLXXXVIII
November 27, 2004 is written as XXVII.XI.MMIV in Roman numerals.
the roman numerals for 27 are XXVII
The date August 27th 1992 can also be written as 08-27-1992 and in Roman numerals this would be VIII.XXVII.MCMXCII
It is: 27 = XXVII when converted into Roman numerals
IX-XXVII-VIII