The Indiction
09/01/312 AD decreed
The Indiction specifies the position of a year in a 15 year taxation cycle.
After its introduction Constantine it ceased to be used in 1806.
The Indiction id calculated thus:
Indiction = (year + 2) mod 15 + 1
Subjects Who or What decreed?
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Constantine the Great (Constantine I, Flavius Valerius Aurelius Constantinus Augustus) Emperor of the Roman Emp...