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Image Source. The most disturbing of the ancient currencies may be dolphin teeth, which were used in the Solomon Islands for hundreds of years, in keeping with timeworn traditions. In 2008 the islandâs dollar currency became devalued.
Roman Currency: Early History. It is not until the early Republican period of the third century BC that the Romans began using coinage in the manner that most are familiar with. Prior to this, the coins used for trade were made of bronze and of irregular size and weight. They were known as the Aes Rude.