2009 is MMIX
July-III-MMI
JulyIII MDDCXC
Vii iii mmx
It is: VII-III-MMXIII
III/V/MMIX
III-VI-MMIX
March 11, 2009 or 3 - 11 - 2009 III - XI - MMIX
July 3 1999Improved Answer:-In today's notation it is: VII-III-MCMXCIXNote that today we write out 1999 in Roman numerals as MCMXCIX but the Romans themselves would have worked it out on an abacus counting device as MDCCCCLXXXXVIIII and by placing I to both sides of these numerals probably simplified it to IMM (-1+2000=1999) in written form.
In today's notation of Roman numerals: V-III-MCMXXVI
3 - III
3 = III
the roman numerals L,X,M,C,I,D ARE the roman numerals that can be used only 3 times