Dominion Year
From Tardis Wiki, the free Doctor Who reference
In the Alternate Rome Terra Nova, the calendar was based on the Dominion Year (DY).
In 1 DY, the calendar was changed from 725 AUC (29 BC) to Dominion Year One.
In 13 DY, Marcus Antonius died and his funeral was held.
In 15 DY, his wife, Cleopatra VII, died. (PROSE: State of Change)
