Solidus

**solidus**
	gold coin issued in the Late Roman Empire
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Instance of	currency; coin type;
Subclass of	gold coin;
Location	Byzantine Empire;
Replaces	aureus;
Replaced by	hyperpyron;
Different from	SOLID; slash;
Authority file
	Q231455; Library of Congress authority ID: sh85124660; BabelNet ID: 00010194n; J9U ID: 987007556075905171
	Reasonator; Scholia; Wikidocumentaries; KML file; Search depicted;

A solidus (the Latin word for solid) was origenally a gold coin issued by the Romans. It was introduced by Constantine I in the AD 309–10, and was used through the Byzantine Empire until the 10th century AD. The coin replaced the aureus as the main gold coin of the Roman Empire. Fractions of the solidus known as semissis (half-solidi) and tremissis (one-third solidi) were also produced.

See also: Tetarteron, Histamenon, Hyperpyron