It was the old Roman calendar which had only 10 months in a year.
the Roman calendar
Rome
yes .The Aztec's did have a calendar, but the one we use came from the Romans and is called the Julian Calendar after Julius Caesar.
Julian
The calendar used in Rome from 45 BC through AD 1581 is the Julian Calendar, which was introduced by Julius Caesar in 46 BC.
the Roman calendar
Julian Calendar
12
No. Many calendars were in use before this.
In the bigining the The Prophet Enoch (Henok) calendars were used until Julian calendar took over it and then Gregorian calendar emerged at the year of 16 century.
Before the introduction of the Gregorian Calendar in 1582, most of the world that now uses the Gregorian Calendar was using the Julian Calendar.
The name of Caesar's calendar was the Julian calendar. It was replaced in 1582 by the Gregorian calendar, which we used today.
The Julian Calendar was initiated by Julius Ceaser in 45B.C.
The Julian Calendar is named for Julius Caeser.
junius
2012 in the Julian calendar is a leap year that begins on a Saturday and ends on a Sunday. 1 Jan 2012 in the Julian calendar is 14 Jan 2012 in the Gregorian calendar.
the Gregorian calendar