| 45 up to rx |
January 1 - Julius Caesar introduces the Julian Calendar. For these merits, one of the months is given his name "July." |
| 3-6 up to rx |
Jesus was born. |
| 30 AD |
April 7 - Jesus was crucified. |
| 321 AD |
Dies Dominicus enters the day off on the 1st day of the week, which is the day of the Lord, that is, the Sunday of the Messiah, where our Sunday. |
| 376 AD |
All the church fathers agreed with the date of Christmas on December 25, before that it was on January 6th. Clement and Alexandria tended to April 20, others by May 20. |
| 525 AD |
Anno Domini - introduced the chronology from the year of the Lord (from the Nativity of Christ), the Roman monk Dionysius the Small. |
| 7 century |
In Greece, the chronology from the creation of the world (5508 year to C.M.) is accepted. |
| 998 AD |
Establishment of Christianity in Russia. |
| 1492 AD |
March 1, 7000 AD From SM. - in Russia the chronology from the creation of the world (from the creation of Adam on Friday) is introduced.
The new year began to celebrate on March 1. |
| 1582 AD |
The Gregorian Calendar. A calendar was developed as directed by the Roman Pope Gregory XIII in connection with the departure of Christmas in the summer. |
| 1700 AD |
January 1 - Peter I introduces the chronology from the Nativity of Christ (7208 AD From SM). The new year began to celebrate on January 1. Beginning in Russia the tradition of celebrating the New Year with Christmas tree. |
| 18 century |
Most countries switch to the Gregorian calendar. |
| 01/31/1918 |
The decree of Soviet power in Russia introduces the Gregorian calendar. |
