Why is the current calendar called the Julian calendar?
It’s not, it’s called the Gregorian Calender. Julius Caesar reformed and improved the old Roman calender in the first century B.C. and thus it was called the Julian Calender. His reform was very good but it did not allow for the fact that a year is actually 365.25 days long. It had the year being exactly 365 days. Thus by the Middle Ages the calendar was off by eleven days. Pope Gregory the Great revised it by just cutting out eleven days one year, so the calender would “catch up” with the actual position of the sun and stars in the sky, and adding leap years so that it would not get out of alignment again. Thus we now have the Gregorian Calender.
