four roman coins parts

1-The aureus (aurei — "golden") was a gold coin of ancient Rome valued at 25 silver denarii
2-denarius : was a small silver coin first minted about 211 BC during the Second Punic War.
3-The Sestertius, or Sesterce, (pl. sestertii) was an ancient Roman coin. During the Roman Republic it was a small, silver coin issued only on rare occasions. During the Roman Empire it was a large brass coin
4-The fals (plural fulus) was a copper coin produced by the Umayyad caliphate (661-750) and the Abbasid caliphate (750-1258) beginning in the late 7th century. The name is a corruption of follis, a Roman and later Byzantine copper coin. The fals usually featured ornate Arabic script on both sides. Various copper fals were produced until the 19th century.
The word fulus is still used in modern spoken Arabic for money