Histamenon
Byzantinischer Nachfolger des Solidus ab 963.
The term applied to the standard, full-weight gold Byzantine denomination between 963 and 1092 to differentiate from the light-weight gold denomination (nomisma tetarteron). During the reign of Michael IV (1034-1041), the coin began to take a slightly concave shape, with the degree of curvature increasing over time. During the eleventh century, the coin went through various phases of debasement, with the gold content plummeting in the 1080s.