Money has been a medium of exchange for thousands of years, but many forms of money have been used.

Sumerian Ring Greece - Thrace
Money 3500 BCE 500-350 BCE


Greece - Macedonian Kingdom
Alexander the Great 336-323 BCE

Judean "Widow's Mite Marcus Aurelius
(Mentioned in Bible) Rome 161-180 AD

Gordian III Roman Emperor 238-244 AD


Constantine I 337 AD (also called The Great)
issued as commemorative at time of death