20. Rome was another city that did not begin producing what we would call coins until quite late in its history. What did the early Romans use as money?
From Quiz Funny Money
Answer:
Lumps of cast bronze
There wasn't much silver in Italy, but there was a lot of copper, so the Romans adopted a monetary system based on bronze. In the earliest days of the Roman Republic, the currency was just odd lumps of cast bronze traded by weight, called "aes rude" (aes is the Latin word for bronze). These eventually evolved into flat bars of bronze stamped with various symbols called "aes signatum," but they were still valued by weight. The first true coins did not appear until the 3rd century BC; called "aes grave," these were large bronze coins that were cast in molds, and weighed from 10 pounds down to a quarter of an ounce. A short time later, Rome began producing struck silver coins, and the bronze coins were reduced in weight to become a token coinage. In 211 BC, Rome introduced the silver denarius, a coin that would be produced for nearly 500 years.