in the First Century The Roman Empire Emperors Nerva & Trajan

In Roman Numerals, 1998 is written as MCMXCVIII Why is 1998 in Roman Numerals Written as MCMXCVIII? We know that in

Under Emperor Marcus Ulpius Trajan , Arabia, Mesopotamia, Armenia, Assyria all became Roman colonies, as did Dacia

roman 999 98 in Roman Numerals How to Write 98 is XCVIII

roman 68 Silver Denarius 154-41 Constantine the great roman silver coin This silver coin contains 95-98% pure silver