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BIBLIOGRAPHY

Dumbarton Oaks, Byzantine coins exhibition (2001-02 web exhibition)

Dumbarton Oaks (archived version from the Wayback Machine)

Claims Supported by This Source

  1. The solidus was a 4.5 g pure gold coin introduced by Constantine I in 309. It was maintained for six hundred years with almost no change in weight and purity until Constantine VII (913-959), and then continued in a slightly debased form until the 1350s.
  2. In the 11th century, increasing amounts of silver were gradually mixed into the gold nomisma.
  3. In 1092, Alexios I reformed the currency, and the hyperpyron maintained the weight of the nomisma.
  4. The image of Christ appeared on the solidus of Justinian II (685-695) at the end of the 7th century, and the emperor's image was moved to the reverse.

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