The History of the European Calendar: The Julian calendar was established as the official calendar of Europe by Julius Caesar in 45 B.C. Caesar's calendar, which consisted of eleven months of 30 or 31 days and a 28-day February (extended to 29 days every fourth year), was actually quite accurate: It erred from the real solar calendar by only 11½ minutes per year. However, after centuries, even a small inaccuracy adds up. By the sixteenth century, it had put the Julian calendar behind the solar one by 10 days.
In 1582, Pope Gregory XIII ordered the advancement of the calendar by 10 days and introduced a new corrective device to curb further error: century years such as 1700 or 1800 would no longer be counted as “leap years”, unless they were (like 1600 or 2000) divisible by 400. The Gregorian calendar year differs from the solar year by only 26 seconds—which adds up to one day's difference every 3,323 years.
Some eastern European countries continue to use the Julian calendar, and it was not until 1752 that England (and its colonies) changed to the Gregorian calendar.
New Year's Day (January 1): In most places, on the last day of the old year, people gather together to count down to the New Year, with great celebration. The New Year often marks a time for individual resolutions to change one's actions and life for the better in the future.
HAPPY NEW YEAR!!