In what year was the calendar changed? Old and new calendar style

- a number system for large periods of time, based on periodicity visible movements celestial bodies

The most common solar calendar is based on the solar (tropical) year - the period of time between two successive passages of the center of the Sun through the vernal equinox.

A tropical year has approximately 365.2422 average solar days.

The solar calendar includes the Julian calendar, the Gregorian calendar and some others.

The modern calendar is called the Gregorian calendar ( new style), it was introduced by Pope Gregory XIII in 1582 and replaced the Julian calendar (old style), which had been in use since the 45th century BC.

The Gregorian calendar is a further refinement of the Julian calendar.

In the Julian calendar, proposed by Julius Caesar, the average length of the year in an interval of four years was 365.25 days, which is 11 minutes 14 seconds longer than the tropical year. Over time, the onset of seasonal phenomena Julian calendar occurred on all earlier dates. Particularly strong discontent was caused by the constant shift in the date of Easter, associated with the spring equinox. In 325, the Council of Nicaea decreed a single date for Easter for all christian church.

In subsequent centuries, many proposals were made to improve the calendar. The proposals of the Neapolitan astronomer and physician Aloysius Lilius (Luigi Lilio Giraldi) and the Bavarian Jesuit Christopher Clavius were approved by Pope Gregory XIII. On February 24, 1582, he issued a bull (message) introducing two important additions to the Julian calendar: 10 days were removed from the 1582 calendar—October 4 was immediately followed by October 15. This measure made it possible to preserve March 21 as the date of the vernal equinox. In addition, three out of every four century years were to be considered ordinary years, and only those divisible by 400 were to be considered leap years.

1582 was the first year of the Gregorian calendar, called the new style.

Gregorian calendar different countries was introduced at various times. The first countries to switch to the new style in 1582 were Italy, Spain, Portugal, Poland, France, Holland and Luxembourg. Then in the 1580s it was introduced in Austria, Switzerland, and Hungary. In the 18th century, the Gregorian calendar began to be used in Germany, Norway, Denmark, Great Britain, Sweden and Finland, and in the 19th century - in Japan. At the beginning of the 20th century, the Gregorian calendar was introduced in China, Bulgaria, Serbia, Romania, Greece, Turkey and Egypt.

In Rus', along with the adoption of Christianity (10th century), the Julian calendar was established. Since the new religion was borrowed from Byzantium, the years were counted according to the Constantinople era “from the creation of the world” (5508 BC). By decree of Peter I in 1700, the European chronology was introduced in Russia - “from the Nativity of Christ”.

December 19, 7208 from the creation of the world, when the reformation decree was issued, in Europe corresponded to December 29, 1699 from the Nativity of Christ according to the Gregorian calendar.

At the same time, the Julian calendar was preserved in Russia. The Gregorian calendar was introduced after the October Revolution of 1917 - from February 14, 1918. The Russian Orthodox Church, preserving traditions, lives according to the Julian calendar.

The difference between the old and new styles is 11 days for the 18th century, 12 days for the 19th century, 13 days for the 20th and 21st centuries, 14 days for the 22nd century.

Although the Gregorian calendar is quite consistent with natural phenomena, it is also not completely accurate. The length of the year in the Gregorian calendar is 26 seconds longer than the tropical year and accumulates an error of 0.0003 days per year, which is three days per 10 thousand years. The Gregorian calendar also does not take into account the slowing rotation of the Earth, which lengthens the day by 0.6 seconds per 100 years.

The modern structure of the Gregorian calendar also does not fully meet the needs public life. Chief among its shortcomings is the variability of the number of days and weeks in months, quarters and half-years.

There are four main problems with the Gregorian calendar:

— Theoretically, the civil (calendar) year should have the same length as the astronomical (tropical) year. However, this is impossible, since the tropical year does not contain an integer number of days. Because of the need to add an extra day to the year from time to time, there are two types of years - ordinary and leap years. Since the year can begin on any day of the week, this gives seven types of ordinary years and seven types of leap years—for a total of 14 types of years. To fully reproduce them you need to wait 28 years.

— The length of the months varies: they can contain from 28 to 31 days, and this unevenness leads to certain difficulties in economic calculations and statistics.|

— Neither ordinary nor leap years contain an integer number of weeks. Semi-years, quarters and months also do not contain a whole and equal number of weeks.

— From week to week, from month to month and from year to year, the correspondence of dates and days of the week changes, so it is difficult to establish the moments of various events.

In 1954 and 1956, drafts of a new calendar were discussed at sessions of the UN Economic and Social Council (ECOSOC), but final decision the issue was postponed.

In Russia, the State Duma was proposing to return the country to the Julian calendar from January 1, 2008. Deputies Viktor Alksnis, Sergey Baburin, Irina Savelyeva and Alexander Fomenko proposed to establish transition period from December 31, 2007, when for 13 days chronology will be carried out simultaneously according to the Julian and Gregorian calendars. In April 2008, the bill was rejected by a majority vote.

The material was prepared based on information from RIA Novosti and open sources

The Gregorian calendar was introduced Pope Gregory XIII in Catholic countries October 4, 1582 instead of the old Julian: the next day after Thursday, October 4, became Friday, October 15.

Reasons for switching to the Gregorian calendar

The reason for the adoption of the new calendar was the gradual shift in the Julian calendar of the vernal equinox, by which the date of Easter was determined, and the discrepancy between the Easter full moons and the astronomical ones. Julian calendar error at 11 min. 14 sec. per year, which Sosigenes neglected, by the 16th century led to the fact that vernal equinox fell not on March 21, but on the 11th. The displacement led to the correspondence of the same days of the year to others natural phenomena. Year according to the Julian calendar in 365 days, 5 hours, 49 minutes and 46 seconds, as later scientists found out, was longer than the real solar year by 11 minutes 14 seconds. The “extra” days accumulated in 128 years. Thus, for one and a half millennia, humanity has lagged behind real astronomical time by as much as ten days! Reform of Pope Gregory XII I was precisely intended to eliminate this error.

Before Gregory XIII, Popes Paul III and Pius IV tried to implement the project, but they did not achieve success. The preparation of the reform, at the direction of Gregory XIII, was carried out by the astronomers Christopher Clavius and Aloysius Lilius.

The Gregorian calendar is much more accurate than the Julian calendar: it gives a much better approximation of the tropical year.

The new calendar, immediately upon adoption, shifted the current date by 10 days and corrected accumulated errors.

The new calendar began to operate in a new, more exact rule O leap year. A year is a leap year, that is, it contains 366 days if:

the year number is a multiple of 400 (1600, 2000, 2400);
other years - the year number is a multiple of 4 and not a multiple of 100 (... 1892, 1896, 1904, 1908...).

The rules for calculating Christian Easter have been modified. Currently, the date of Christian Easter in each specific year is calculated according to the lunisolar calendar, which makes Easter a moving holiday.

Transition to the Gregorian calendar

Go to new calendar was carried out gradually, in most European countries this happened during the 16th -17th centuries. And this transition did not go smoothly everywhere. The first countries to switch to the Gregorian calendar were Spain, Italy, Portugal, the Polish-Lithuanian Commonwealth (Grand Duchy of Lithuania and Poland), France, and Lorraine. In 1583, Gregory XIII sent an embassy to Patriarch Jeremiah II of Constantinople with a proposal to switch to a new calendar; the proposal was rejected as not complying with the canonical rules for celebrating Easter. In some countries that switched to the Gregorian calendar, the Julian calendar was subsequently resumed as a result of their annexation with other states. Due to the transition of countries to the Gregorian calendar at different times, factual errors of perception may arise: for example, it is known that Miguel de Cervantes and William Shakespeare died on April 23, 1616. In fact, these events occurred with a difference of 10 days, since in Catholic Spain the new style was in effect since its introduction by the pope, and Great Britain switched to the new calendar only in 1752. There were cases when the transition to the Gregorian calendar was accompanied by serious unrest.

In Russia, the Gregorian calendar was introduced in 1918: in 1918, January 31 was followed by February 14. That is, in a number of countries, like in Russia, there was a day on February 29 in 1900, while in most countries it was not. In 1948, at the Moscow Conference of Orthodox Churches, it was decided that Easter, like all movable holidays, should be calculated according to the Alexandrian Paschal (Julian calendar), and non-movable ones according to the calendar by which people live. Local Church. Finnish Orthodox Church celebrates Easter according to the Gregorian calendar.

Various nations, religious cults, and astronomers tried to make counting the inexorably current time both the most accurate and simplest for any person. The starting point was the movement of the Sun, Moon, Earth, and the location of the stars. There are dozens of calendars developed and still used today. For the Christian world, there were only two significant calendars used for centuries - the Julian and the Gregorian. The latter is still the basis of chronology, considered the most accurate and not subject to the accumulation of errors. The transition to the Gregorian calendar in Russia occurred in 1918. This article will tell you what this was connected with.

From Caesar to the present day

It was after this multifaceted personality that the Julian calendar was named. The date of its appearance is considered to be January 1, 1945. BC e. based on the emperor's decree. It's funny that the starting point has little to do with astronomy - it is the day the consuls of Rome took office. This calendar, however, was not born out of nowhere:

The basis for it was the calendar ancient egypt, which has existed for centuries, in which there were exactly 365 days, changing seasons.
The second source for compiling the Julian calendar was the existing Roman one, which was divided into months.

The result is a fairly balanced, thoughtful way of visualizing the passage of time. It harmoniously combined ease of use, clear periods with the astronomical correlation between the Sun, Moon and stars, known for a long time and influencing the movement of the Earth.

The appearance of the Gregorian calendar, completely tied to the solar or tropical year, owes grateful humanity to Pope Gregory XIII, who ordered everyone to switch to a new time on October 4, 1582 Catholic countries. It must be said that even in Europe this process was neither shaky nor slow. Thus, Prussia switched to it in 1610, Denmark, Norway, Iceland - in 1700, Great Britain with all its overseas colonies - only in 1752.

When did Russia switch to the Gregorian calendar?

Thirsty for everything new after having destroyed everything, the fiery Bolsheviks gladly gave the command to switch to a new progressive calendar. The transition to it in Russia took place on January 31 (February 14), 1918. The Soviet government had quite revolutionary reasons for this event:

Almost all European countries have long switched to this method of chronology, and only the reactionary tsarist government clamped down on the initiative of those very inclined to astronomy, among other things. exact sciences peasants and workers.
The Russian Orthodox Church was against such violent intervention, which violates the sequence of biblical events. But how can the “sellers of dope for the people” be smarter than the proletariat, armed with the most advanced ideas?

Moreover, the differences between the two calendars cannot be called fundamentally different. By by and large, the Gregorian calendar is a modified version of the Julian calendar. The changes are mainly aimed at eliminating, reducing the accumulation of temporary errors. But as a result of dates that happened long ago historical events, birth famous personalities have a double, confusing calculation.

For example, October Revolution happened in Russia on October 25, 1917 - according to the Julian calendar or the so-called old style, which is historical fact or November 7 of the same year in a new way - Gregorian. It feels like the Bolsheviks carried out the October Rebellion twice - the second time as an encore.

The Russian Orthodox Church, which the Bolsheviks were unable to force either by shooting clergymen or by organized robbery of artistic values to recognize the new calendar, did not deviate from the biblical canons, calculating the passage of time, the offensive church holidays according to the Julian calendar.

Therefore, the transition to the Gregorian calendar in Russia is not so much a scientific, organizational event as a political one, which at one time affected the destinies of many people, and its echoes are still heard today. However, against the background fun game in “move the time forward / back an hour”, which has not yet finally ended, judging by the initiatives of the most active deputies, this is simply a historical event.

Different ways of calculating the calendar. A new style of time calculation was introduced by the Council of People's Commissars - the government Soviet Russia January 24, 1918 "The Decree on the Introduction to Russian Republic Western European calendar".

The decree was intended to promote “the establishment in Russia of the same cultural peoples calculation of time". Indeed, since 1582, when throughout Europe the Julian calendar, in accordance with the recommendations of astronomers, was replaced by the Gregorian, the Russian calendar turned out to differ from the calendars of civilized states by 13 days.

The fact is that the new European calendar was born through the efforts of the Pope, but the Russian Orthodox clergy had no authority or decree from the Catholic Pope, and they rejected the innovation. So they lived for more than 300 years: in Europe New Year,V Russia is still December 19th.

The decree of the Council of People's Commissars (abbreviation of the Council of People's Commissars) dated January 24, 1918, ordered February 1, 1918 to be considered February 14th (in parentheses, we note that, according to many years of observations, the Russian orthodox calendar, that is " Old style", more consistent with the climate of the European part Russian Federation. For example, on March 1, when according to the old style it is still deep February, there is no smell of spring, and relative warming begins in mid-March or its first days according to the old style).

Not everyone liked the new style

However, not only Russia resisted the establishment of the Catholic count of days; in Greece, the “New Style” was legalized in 1924, Turkey - 1926, Egypt - 1928. At the same time, it is not heard that the Greeks or Egyptians celebrated, as in Russia, two holidays: New Year and Old New Year, that is, New Year according to the old style.

It is interesting that the introduction of the Gregorian calendar was accepted without enthusiasm in those European countries, where the leading religion was Protestantism. So in England they switched to a new account of time only in 1752, in Sweden - a year later, in 1753.

Julian calendar

It was introduced by Julius Caesar in 46 BC. Started on January 1st. The year had 365 days. A year number divisible by 4 was considered a leap year. One day was added to it - February 29. The difference between the calendar of Julius Caesar and the calendar of Pope Gregory is that the first has a leap year every fourth year without exception, while the second has leap years only those years that are divisible by four, but not divisible by a hundred. As a result, the difference between Julian and Gregorian calendars gradually increases and, for example, in 2101 Orthodox Christmas will be celebrated not on January 7, but on January 8.

Since by this time the difference between the old and new styles was 13 days, the decree ordered that after January 31, 1918, not February 1, but February 14. The same decree prescribed, until July 1, 1918, after the date of each day according to the new style, to write in brackets the number according to the old style: February 14 (1), February 15 (2), etc.

From the history of chronology in Russia.

The ancient Slavs, like many other peoples, initially based their calendar on the period of change lunar phases. But already by the time of the adoption of Christianity, i.e. by the end of the 10th century. n. e., Ancient Rus' I used the lunisolar calendar.

Calendar of the ancient Slavs. It was not possible to definitively establish what the calendar of the ancient Slavs was. It is only known that initially time was counted by seasons. Probably, the 12-month period was also used at the same time lunar calendar. In later times, the Slavs switched to a lunisolar calendar, in which an additional 13th month was inserted seven times every 19 years.

The most ancient monuments of Russian writing show that the months had purely Slavic names, the origin of which was closely related to natural phenomena. Moreover, the same months, depending on the climate of the places in which different tribes lived, received different names. So, January was called where the section (the time of deforestation), where the prosinets (after the winter clouds the blue sky appeared), where the jelly (since it became icy, cold), etc.; February—cut, snowy or severe (severe frosts); March - berezozol (there are several interpretations here: the birch begins to bloom; they took sap from birches; they burned the birch for coal), dry (the poorest in precipitation in the ancient Kievan Rus, in some places the earth was already dry, the sap (a reminder of birch sap); April - pollen (blooming of gardens), birch (beginning of birch flowering), duben, kviten, etc.; May - grass (grass turns green), summer, pollen; June - Cherven (cherries turn red), Izok (grasshoppers chirp - “Izoki”), Mlechen; July - lipets (linden blossoms), cherven (in the north, where phenological phenomena are delayed), serpen (from the word “sickle”, indicating the time of harvest); August - sickle, stubble, roar (from the verb “to roar” - the roar of deer, or from the word “glow” - cold dawns, and possibly from “pasori” - auroras); September - veresen (heather blossoms); ruen (from the Slavic root word meaning tree, giving yellow paint); October - leaf fall, “pazdernik” or “kastrychnik” (pazdernik - hemp buds, the name for the south of Russia); November - gruden (from the word “heap” - frozen rut on the road), leaf fall (in the south of Russia); December - jelly, chest, prosinets.

The year began on March 1, and around this time agricultural work began.

Many ancient names of months later moved into the series Slavic languages and largely held in some modern languages, in particular in Ukrainian, Belarusian and Polish.

At the end of the 10th century. Ancient Rus' adopted Christianity. At the same time, the chronology used by the Romans came to us - the Julian calendar (based on the solar year), with Roman names for the months and a seven-day week. It counted years from the “creation of the world,” which allegedly occurred 5508 years before our chronology. This date - one of the many variants of eras from the “creation of the world” - was adopted in the 7th century. in Greece and for a long time used by the Orthodox Church.

For many centuries, the beginning of the year was considered March 1, but in 1492, in accordance with church tradition, the beginning of the year was officially moved to September 1 and was celebrated this way for more than two hundred years. However, a few months after Muscovites celebrated their next New Year on September 1, 7208, they had to repeat the celebration. This happened because on December 19, 7208, a personal decree of Peter I on the reform of the calendar in Russia was signed and promulgated, according to which a new beginning of the year was introduced - from January 1 and new era- Christian chronology (from the “Nativity of Christ”).

Peter's decree was called: "On the writing henceforth of Genvar from the 1st day of 1700 in all papers of the year from the Nativity of Christ, and not from the creation of the world." Therefore, the decree prescribed that the day after December 31, 7208 from the “creation of the world” should be considered January 1, 1700 from the “Nativity of Christ.” In order for the reform to be adopted without complications, the decree ended with a prudent clause: “And if anyone wants to write both those years, from the creation of the world and from the Nativity of Christ, freely in a row.”

Celebrating the first civil New Year in Moscow. The day after the announcement of Peter I’s decree on calendar reform on Red Square in Moscow, i.e. December 20, 7208, a new decree of the tsar was announced - “On the celebration of the New Year.” Considering that January 1, 1700 is not only the beginning of a new year, but also the beginning of a new century (Here a significant mistake was made in the decree: 1700 is last year XVII century, and not the first year of the XVIII century. The new century began on January 1, 1701. An error that is sometimes repeated today, the decree ordered that this event be celebrated with especially solemnity. It gave detailed instructions on how to organize a holiday in Moscow. On New Year's Eve, Peter I himself lit the first rocket on Red Square, giving the signal for the opening of the holiday. The streets were illuminated. The ringing of bells and cannon fire began, and the sounds of trumpets and timpani were heard. The Tsar congratulated the population of the capital on the New Year, and the festivities continued all night. Multi-colored rockets took off from the courtyards into the dark winter sky, and “along the large streets, where there is space,” lights burned—bonfires and tar barrels attached to poles.

The houses of the residents of the wooden capital were decorated with needles “from trees and branches of pine, spruce and juniper.” For a whole week the houses were decorated, and as night fell the lights were lit. Shooting “from small cannons and from muskets or other small weapons,” as well as launching “missiles,” were entrusted to people “who do not count gold.” And “poor people” were asked to “put at least a tree or branch on each of their gates or over their temple.” Since that time, our country has established the custom of celebrating New Year's Day on January 1 every year.

After 1918, there were still calendar reforms in the USSR. In the period from 1929 to 1940, calendar reforms were carried out in our country three times, caused by production needs. Thus, on August 26, 1929, the Council of People's Commissars of the USSR adopted a resolution “On the transition to continuous production in enterprises and institutions of the USSR,” which recognized the need to begin systematic and consecutive translation enterprises and institutions for continuous production. In the fall of 1929, a gradual transition to “continuity” began, which ended in the spring of 1930 after the publication of a resolution of a special government commission under the Council of Labor and Defense. This decree introduced a unified production timesheet and calendar. IN calendar year 360 days were provided, i.e. 72 five-day periods. It was decided to consider the remaining 5 days as holidays. Unlike the ancient Egyptian calendar, they were not located all together at the end of the year, but were timed to coincide with Soviet memorial days and revolutionary holidays: January 22, May 1 and 2, and November 7 and 8.

The workers of each enterprise and institution were divided into 5 groups, and each group was given a day of rest on every five-day week for the whole year. This meant that after four working days there was a day of rest. After the introduction of the “uninterrupted” period, there was no longer a need for a seven-day week, since weekends could fall not only on different days of the month, but also on different days of the week.

However, this calendar did not last long. Already on November 21, 1931, the Council of People's Commissars of the USSR adopted a resolution “On the intermittent production week in institutions,” which allowed the People's Commissariats and other institutions to switch to a six-day intermittent production week. For them, permanent days off were established on the following dates of the month: 6, 12, 18, 24 and 30. At the end of February, the day off fell on the last day of the month or was postponed to March 1. In those months that contained 31 days, the last day of the month was considered the same month and was paid specially. The decree on the transition to an intermittent six-day week came into force on December 1, 1931.

Both the five-day and six-day periods completely disrupted the traditional seven-day week with a general day off on Sunday. The six-day week was in use for about nine years. Only on June 26, 1940, the Presidium of the Supreme Soviet of the USSR issued a decree “On the transition to an eight-hour working day, to a seven-day working week and on the prohibition of the unauthorized departure of workers and employees from enterprises and institutions." In development of this decree, on June 27, 1940, the Council of People's Commissars of the USSR adopted a resolution in which it established that "in addition to Sundays, non-working days are also:

January 22, May 1 and 2, November 7 and 8, December 5. The same decree abolished the existing rural areas six special days of rest and non-working days on March 12 (Day of the Overthrow of the Autocracy) and March 18 (Paris Commune Day).

On March 7, 1967, the Central Committee of the CPSU, the Council of Ministers of the USSR and the All-Russian Central Council of Trade Unions adopted a resolution “On the transfer of workers and employees of enterprises, institutions and organizations to a five-day work week with two days off,” but this reform did not in any way affect the structure of the modern calendar."

But the most interesting thing is that passions do not subside. The next revolution is happening in our new time. Sergey Baburin, Victor Alksnis, Irina Savelyeva and Alexander Fomenko contributed to the State Duma a bill on the transition of Russia from January 1, 2008 to the Julian calendar. IN explanatory note the deputies noted that “there is no world calendar” and proposed establishing a transition period from December 31, 2007, when, for 13 days, chronology would be carried out simultaneously according to two calendars at once. Only four deputies took part in the voting. Three are against, one is for. There were no abstentions. The rest of the elected representatives ignored the vote.