Roman calendar

American  

noun

1. the calendar in use in ancient Rome until 46 b.c., when it was replaced with the Julian calendar.

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Roman calendar British  

noun

1. the lunar calendar of ancient Rome, replaced in 45 _bc by the Julian calendar. It originally consisted of 10 months, with a special month intercalated between Feb 23 and 24

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Etymology

Origin of Roman calendar

First recorded in 1780–90

Example Sentences

On the old Roman calendar, October was the eighth month.

From Washington Times

The first time it’s pinned down to 25 December, or at least to the “Eighth day before the Kalends of January” is the year AD354, in the Roman calendar of Philocalus.

From The Guardian

But it is dated to 16 days before the "calends" of November in the old Roman calendar style - which is 17 October in our modern dating method.

From BBC

There was an ever-increasing number of feast days in the Roman calendar.

From Literature

Faced with an old Roman calendar that was itself drifting out of sync with the solar year, he recognized the Alexandrian calendar as a worthy model for a proposed revision.

From Literature