The long-term account system is called the calendar.
Beside the modern calender lies typical year - intermittently between two continuous periods of time.

Introduced by Julius Caesarem in 46 years before our era.
The duration of the calendar year is based on an average of 365 average solar cards, with the exception of the Tex year, a short number for 4 without; the duration of the last years was taken at 366 times, and they received the name high-season. HIGH YEAR IN FEBRUARY It is considered not 28, a 29 days.
The account of the Julian years for 128 years gives a stay with the typical years for approximately one year, for 400 years it is approximately in the current quote. (For example, a day of all-round equality after 400 years after the Julian calender has been spending three days earlier). The calendar is late. The time lapse in 36525 of the average solar quotes is called the Julian age.

In 1582, Gregory XIII made a reform of the Julian Calendar. The form was as follows:
1. After October 4, 1582, they began to read not October 5, and October 15. This has eliminated the cost of 10 hours with the account of typical years, which has accumulated since 325 years. *).
2. In the future, they began to read every fourth year, except for the exception of the year with a whole number of years (1700, 1800, 1900); A year with a whole number of centuries became considered high-quality only, if only a few can be left without a delay (for example, 1600, 2000, etc.).
As a result of this rule, the calendaring year has become longer than the typical year only at 0.0003 average solar quotes.
This account system received the title of the calendaring or the new style.
The Gigantic calendar was introduced into Western countries during the 16th-17th centuries. In the former CCCP, the new style was introduced by the decree of the Government in 1918, while this took place on February 1, on February 14th. So, as a result of the Julian calendars, by the way, in typical years, by 1918 it amounted to 13 times.

*) In 325, the Nicene Council was established, on which the rules for the celebration of religious holidays, (especially Easter). These rules were related to the accumulation of certain natural phenomena, for example, the holiday of Easter - with the day of the spring of equal property.

Note:
Next to the year, the number indicates which calender table is used to determine the day of the week on which the person was born. This European calendar (In Europe, the first day of the week it is taken to count Sunday), all the Europeans. You can’t just use this calendars, but you should not put it on any day if you had a good time with your parents or others.
It will also help the operator in predicting the events of the future, predicting your Fate.
Those who were born the same week, like Albert Einstein (1879 03 11), may also not be deprived of the genius. SEE THE FOURTH TABLE: Einstein was lucky.
Ha pity, according to this calendar, it’s impossible to determine what week the week of Bonaparte was depleted (One of the maniacs who tried to conquer the whole world by force of arms): this calendar is the Gregorian, and at the same time the Julian calendar was used.