For exactly the same reasons why we need numbers today.
Roman numerals were created by the Etruscans who once ruled the Romans.
The Etruscans.
The Etruscans.
Roman numerals were conceived by the Etruscans who once ruled the Romans.
Roman numerals were introduced to the Romans by the Etruscans who once ruled them.
Roman numerals were invented by the Etruscans centuries before the rise of the Roman Empire. The Etruscans once conquered and ruled over the Romans.
It was the Etruscans who first created Roman numerals.
Roman numerals were originally introduced by the Etruscans who once ruled the Romans
The idea of Roman numerals was first conceived by the Etruscans who once ruled the Romans
Roman numerals were created by the Etruscans and very little historical facts are known about them.
The Etruscans did, they once ruled the Romans.
From the Etruscans who once ruled the Romans.