Julius Caesar introduced what is known as the Julian calendar in 45 BC.
the roman calendar was made by Julius Caesar.
the Roman calendar
It is the calendar of general oders which means that the calendar follows orders from the general
There was an old Germanic calendar, but it was different to the Roman calendar, which is now used. The Germanic calendar no longer is used.
The months of January and February were added to the Roman calendar.
The Gregorian calendar.
The month of July is named after Julius Caesar, the Roman general and statesman. It was originally called Quintilis, meaning "fifth month" in Latin, as it was the fifth month in the Roman calendar. In 44 BC, it was renamed in honor of Caesar following his assassination, to recognize his contributions to the Roman calendar and society. July has 31 days and is part of the Gregorian calendar used today.
the roman calendar
julius ceasar
he Roman calendar has the same months and month lengths as the Julian calendar, but inserts leap days according to a different rule
December was once the 10th and final month of the year on the early Roman calendar.
It should be --- the old Roman cale ndar.