13 years.
The Romans invented Roman Numerals.
Roman numerals were invented because in the roman times they did not have numbers so these were their numbers
it was invented by a roman called galeo dart
The roman military
Many things from Rome contribute to our world.They invented cementThey invented the domeThey invented the archThey invented sandalsThey invented arenasThey invented water systemsThey invented government centers /courtsThey invented highwaysMany movies are based on Roman legendsThey invented multi story apartmentsThey gave us our rule of law which they took from the GreeksThey gave us military movement and actions still used todayThey gave us city planning. Roman towns were laid out on a grid
It was invented by the artisans.
They ivented lots of things; such as underfloor heating, and other stuff :D xx
things were invented by God.
My teacher said that he invented the calendar. He used his name Julius as July and Octiavan as October and Augustus as August. He sounded pretty clever didn't he! Well I hope my answer helps!!!
roman numerals were made in 1298
it was invented in rome in 1863
Roman numerals were invented by the Etruscans centuries before the rise of the Roman Empire. The Etruscans once conquered and ruled over the Romans.