Who Invented Money and What Is the World's Oldest Currency?

Oldest Coin in the World - Monterey Company

Ancient Coins: Make Your Own Money! - Timothy S. Y. Lam Museum of Anthropology

History of money - Wikipedia

Who Invented Money?

Origin Story: Who Invented Money?

History of coins - Wikipedia

Currencies of the World: How Well Do You Know Your Money? - Beyond Borders

World's Oldest Known Coin Mint Found in China, Smart News

Top 10 Oldest Currencies in The World