What is the chronology in ancient Greece. Chronology in ancient Rome and ancient Greece. Time and calendar

ancient greek calendar

At the beginning of the first millennium BC. e. in ancient Greece, lunisolar calendars began to be created, and each policy (city-state) had its own calendar system. Despite their similarities, each calendar had its own peculiarity and was somewhat different from all the others. The year was divided into 12 months, each of which began with neomenia. To connect with the seasons, an additional, 13th month was periodically inserted.

In different cities of Greece, the months had their own names, but the Athenian names were most common, namely:

Approximate correspondence to our months is indicated in brackets.

The year most often began with the month of the summer solstice, which at that time fell on the hecatombeon (July).

In leap years, a second poseideon was inserted as the embolismic month; sometimes the second skyrophorion was an additional month.

At different times, embolic years alternated in different ways. So, in the VI century. BC e. in some places in Greece, an octaetheride was used, in which 3 out of 8 years were leap years - the 2nd, 5th and 8th years of the cycle.

The most popular in Greece was the calendar developed by Meton. In 432 BC. e., during the festivities dedicated to the 86th Olympiad, a parapegma was installed in the center of Athens - a stone slab with holes into which pins were inserted with the numbers of the current month. Close to holes there was a text carved on a stone indicating upcoming astronomical phenomena, such as the rising and setting of certain stars, the position of the Sun in the constellations, and other phenomena.

Further improvement of the Greek calendar is associated with the names of Calippus and Hipparchus, which we discussed in the section on the mathematical theory of lunar and lunisolar calendars.

Chronology. In Ancient Greece until the middle of the first millennium BC. e. events dated by name officials. So, in Athens, years were counted according to the names of eponyms - heads of executive power (archons) responsible for the correctness of the calendar.

In the IV century. BC e. the common Hellenic chronology for the Olympiads spread. The history of this chronology is as follows. Sports games were widely developed in Ancient Greece. Starting from 776 BC. e. in the city of Olympia, once every 4 years, games took place that took on the character of large national celebrations. According to the place where they were held, they were called Olympic. The Olympic Games were timed to coincide with the beginning of the year, but since this time was not associated with a specific date due to the abundance of calendar systems, messengers had to be sent to all cities before the games to notify the population about the upcoming celebrations.

The Olympic Games entered the life of the ancient Greeks so much that they began to count the time according to the Olympiads and conditionally attributed the beginning of their era to July 1, 776 BC. e. It is believed that the first Olympic Games took place on this day.

The chronology according to the Olympiads was first applied in 264 BC. e. by the ancient Greek historian Timaeus, and this account lasted for about seven centuries. Although in 394 AD. e. Emperor Theodosius I canceled the Olympic Games, the calculation of time according to the Olympiads was applied a little later.

In the chronology of the Olympiads, the years were designated by the serial number of the Olympiad and the number of the year in the four years. So, the victory of the Greeks over the Persians in the naval battle in the Salamis Strait dates back to the numbers “75. 1", which means "the first year of the 75th Olympiad".

The translation of these dates into our summer calendar is carried out according to the formula

A \u003d 776 - [(Ol - 1) × 4 + (t - 1)],

where A is the desired date, O1 is the number of the Olympiad, (t is the number of the year in the Olympiad.

The Battle of Salamis took place in the first year of the 75th Olympiad. Let's translate this date into our chronology.

Substituting the values ​​O1 = 75 and I = 1 into the formula, we obtain

A \u003d 776 - [(75 - 1) × 4 + (1 - 1) 1 \u003d 480.

Indeed, the Battle of Salamis took place in September 480 BC. e.

If the expression in square brackets in this formula turned out to be 776 or more, then 775 would have to be subtracted from it. In this case, we would get the year of our era.

At the beginning of the 1st millennium BC. e. Greece, which consisted of separate city-states (polises), was under the cultural influence of many countries of the East. The ancient Greeks colonized neighboring islands and coasts from Asia Minor to southern Italy and even the northern shores of the Black Sea. And those of them who swam, and those who were engaged in agriculture, needed certain knowledge, they needed a calendar,

For the timely implementation of agricultural work, the ancient Greeks coordinated their lives with the change of seasons, with the visible annual movement of the Sun across the sky. That is why already in the poems of Homer (VIII century BC) it is testified that the ancient Greeks had the concept of a solar year, although ... there is no evidence that they used solar calendars at that time. It can only be argued that already somewhere in the IX century. BC e. The ancient Greeks knew how the appearance of the starry sky changes in rhythm with the change of seasons. This yearly recurring change of visibility individual groups stars and constellations they used in everyday life as a kind of solar calendar.

This is confirmed by the advice that the poet Hesiod (8th century BC) gave to rural workers:

“Start harvesting when the Pleiades rise, and plowing when they are about to set. When Sirius is overhead, cut trees. Arcturus appears in the evening - cut the vines. Orion and Sirius go to the middle of the sky - pick grapes. Fifty days after the solstice, goods can be transported by sea for sale ... With the setting of Orion and the Pleiades, the year is completed.

As can be seen, the beginnings of specific field work are clearly compared with the view of the starry sky. In particular, the sickle should be taken during the first morning (heliacal) rise of the Pleiades (for the time of Hesiod at the latitude of Greece, this is about May 12 according to the modern calendar), when the Pleiades set at dawn (early November), it is time to plow. Towards the end of February, when the star Arcturus rises from the sea in the evening, the vines must be pruned, etc.

Moments of the morning and evening sunrises and sunsets of several of the most remarkable stars, at the latitude of Athens in 501 BC. e. and 300 AD e. are given in table.

Table. Rise and set of "calendar" stars at the latitude of Athens according to the Gregorian calendar

BC e. (-)

Evening

Morning

Evening

Morning

Alcyone

Betelgeuse

(α Orionis)

(α Bootes)

It is easy to see that due to the precession, the visibility conditions of specific stars and their groups are continuously changing. Therefore, in our time, the advice of Hesiod can no longer be used ...

"... In days and months - with the Moon"

As the ancient Greek scholar of the 1st c. before. n. e. Gemin in his "Elements of Astronomy", the Greeks had to make sacrifices to their gods according to the customs of their ancestors, and therefore "they must maintain agreement with the Sun in years, and with the Moon in days and months." Indeed, in their business and social life, the Greeks used lunisolar calendars. The names of the months of these calendars usually came from the names of the festivals celebrated in the corresponding month. So, the Athenians in the first month of their calendar solemnly sacrificed one hundred bulls - “hecatomb”, therefore the month was called Hecatomveon. On the first day of it, civil servants took office, on the 12th day there were holidays dedicated to the god Chronos, who personified time. On the seventh day of the third month - Voidromion - a holiday was celebrated in honor of Apollo Voidromius - "helping in the battle with a cry", and the day before the Greeks honored the dead. In the month of Pianepsion on the 7th day, the Greeks celebrated the feast of grapes, on the 10-14th - a women's holiday, on the 28th day in every fourth year there were Hephaestias accompanied by a torchlight procession - festivities in honor of Hephaestus - the god of fire and blacksmithing, the next two days and were the holidays of blacksmiths. On the eighth month - Anfestirion - the feast of the beginning of the pouring of new wine (“small dionysias”) fell, the corresponding “feast of flowers” ​​event was called Anfestiria. Marriages took place in the month of Hamilion.

The most famous were the Athenian and Macedonian lunisolar calendars. The first of them, in particular, was used by Greek astronomers, the second became widespread in the East after the conquests of Alexander the Great. Here is an approximate correspondence between the months of the Athenian (left), Macedonian and our calendars:

According to some sources, the ancient Greeks originally began their year around the winter solstice. Then its beginning was moved to the summer solstice, since meetings usually took place at this time, at which officials were elected.

The day of the ancient Greeks began at sunset and consisted of night and the day following it. The days of the month were divided into three decades (such a division is already found in Hesiod). The first 10 days were simply counted - from the first to the tenth, the next 9 were called “first”, “second”, etc. with the addition of the words “after ten”, the remaining days were counted in reverse order: “ninth from the end of the month”, “eighth from the end of the month ”, etc. The 30th day was called“ old and new ”, and the previous 29th was“ anticipatory ”; in a month consisting of 29 days, it was excluded from the account.

The name of the 30th day has a deep meaning. For them, the Greeks, in the count of days, seemed to “break away” from observations: they considered the next day to be the 1st day of the new calendar month, regardless of whether the crescent of the moon is visible in the sky or not (after all, in autumn at the latitude of Athens it can be seen only on the third day after the conjunction ).

It is noteworthy that the ancient Greeks on each day of the month honored one or more gods, to whom this day was dedicated. In Athens, in particular, the first and last day of each month was dedicated to Hekate - a goddess who was first considered the patroness of human affairs, later - the goddess of ghosts, nightmares, the mistress of shadows in the underworld, sometimes she was identified with the moon goddess Selene. The 1st day of the month was also dedicated to Apollo and Hermes, the 3rd, 13th and 23rd days - to Athena. Three last days of each month were considered unlucky, they were dedicated to the dead, as well as to the underground gods.

In Gemin we also find some information about the structure of the ancient Greek lunisolar calendars: "For business and social life, the duration of the monthly period was rounded up to 291/2 days, so that two months were 59 days." The calendar year consisted of 12 months. To harmonize the duration of the civil year with the solar year, according to Geminus, "the ancients inserted an additional month (in Athens it was usually the winter Posideon) every year." This means that the Greeks at that time used the trieteris, the most primitive two-year lunar cycle. How long this lasted, how the Greeks brought their lunar calendar into harmony with the solar one, is unknown.

Another piece of evidence about ancient Greek calendars comes from Herodotus (484-425 B.C.): "The Greeks inserted a month in every second or third year for the (correspondence) of the seasons." Apparently, it is already talking about the use by the Greeks of an 8-year cycle - octaetherides, which was supposedly introduced in Greece by the poet and politician Solon (640-560 BC) in 593 BC. e.

In fact, information about the reform carried out at that time is very contradictory. Plutarch (46-126) about Solon says this: “Noticing the inequality of the month and the fact that the movement of the Moon is not consistent with either the sunset or the sunrise, but often on the same day the Moon catches up with the Sun and moves away from it, he decided call this day “old and new”, assuming that part of this day before the conjunction (of the Moon with the Sun) belongs to the expiring month, the rest of the beginning.

The writer Diogenes Laertius (1st half of the 3rd century BC) limited himself to the statement that Solon ordered the Athenians to count the days according to the moon. According to the philosopher Proclus (410-485), before Solon, the Greeks did not seem to know at all that lunar months do not always have 30 days.

Apparently, Solon coordinated the calendar with the Moon by inserting additional days, and possibly not by the Sun, throwing out the intercalated month to bring the beginning of the lunar year to the summer solstice. It is possible, of course, that he actually introduced octaetheride. The embolismic years were the 1st and 3rd years of the odd Olympiad and the 2nd year of the even Olympiad.

It would seem that, observing the phases of the same Moon, the same neomeni, the citizens of different policies would have to start counting the day in months from the same days (another thing is that the months themselves could be called differently). But this was just not the case. Partly, apparently, because the system of octaetherides was not accepted then everywhere, and it “worked” still poorly. As a result, as Plutarch noted, there was no agreement between the individual calendars in counting days in months. We confine ourselves to just one example. Describing one of the events of the war of 431-421. BC e., Aristotle's student Aristoxenus (however, more than a hundred years later) wrote that at that time "the tenth day of the month among the Corinthians corresponded to the fifth day among the Athenians and the eighth according to some other calendar." Apparently, this particular day corresponded to the 7th or 8th day of the moon, but in Athens the calendar was two or three days behind the change in the phases of the moon, while in Corinth it was ahead of it ...

One can therefore understand the great enthusiasm with which in 432 BC. e. during the Olympic Games, the discovery of the astronomer Meton was met. Meton derived a relationship connecting the tropical year with the synodic month, and also calculated and compared on special tables the change of annual risings and sets of stars with the change in the phases of the moon in a 19-year cycle. These tables were carved on stone slabs and installed in city squares for all to see. Such a stone calendar is called a parapegma.

Praise of the parapegma

The very word "parapegma" means "to attach", "to stick". But what relation it has to calendars was established only in 1902, when fragments of such a parapegma were found during excavations of a theater in the city of Miletus (a former Greek colony on the southwestern coast of Asia Minor). One of its fragments is shown in Fig.

Rice. Fragment of the ancient Greek calendar-parapegma

Here you can see the inscriptions arranged in rows, to the left of which, as well as between them, there are a number of holes, there are 30 of them in the right column. The inscriptions say the following:

1 O Sun in Aquarius 2 O Leo begins to set at dawn and Lyra sets O O 5 O Swan sets at evening dawn OOOOOOOOOOO 15 O Andromeda begins to rise at dawn in the morning O O 18 O Aquarius begins to rise in the middle 19 O Pegasus begins to rise at dawn in the morning O 21 O Centaur sets entirely in the morning 22 O Hydra sets entirely in the morning 23 O Whale sets at evening dawn 24 O Arrow sets, bringing Zephyr (spring) time O O O O 29 O Full swan sets at evening dawn 30 O Arcturus rises at evening dawn

An analysis of these inscriptions shows that we are talking about a change in the conditions for the visibility of the rising and setting of stars in Greece during the passage of the Sun through the constellation Aquarius. The left side of the table obviously spoke of similar phenomena occurring thirty days earlier. It can be assumed that there were six such tables in total, and each was “painted” for 61 days. The duration of one year in the metonic cycle is on average 6940:19 = 365.26 days. During this time, Meton believed, the Sun passes through 12 zodiac constellations, lingering in each of them for 365.26:12 = 30.4 days.

So, on the parapegma, the civil lunisolar calendar was compared with changes in the appearance of the starry sky during the solar year and with the corresponding change in the seasons. Let us try, following Meton, to "set into motion" the fragment of the parapegma at our disposal. Suppose that in the year that we take as the initial one (we will call it conditionally the first year of the cycle), the new moon (or neomenia) took place at the moment when “The entire Swan sets at evening dawn”, corresponding to hole 29. Insert a pin into this hole with number 1, into the next hole (30) - with the number 2, etc. These will be the calendar numbers of the lunar month of this year. Similarly, after 29 and 30 days, the same pins will be installed on other tables (including the left side of the parapegma and the upper part of the right side). Thus, the change in the appearance of the starry sky (not so clearly conspicuous!) Will be compared with a well-observed phenomenon - the change in the phases of the moon. Somewhere on one of the tables it will be recorded on what date and which lunar month “In the morning the Pleiades rise”, announcing the harvest time ...

After 12 lunar months, the same new moon will come 11 days earlier. Therefore, in the next, second year of the 19-year cycle, the same month will begin when the “Aquarian middle rises” - hole 18 (=29-11). Consequently, all the pins with the numbers of days must be moved 11 positions back in the holes. On the third year of the cycle, the beginning of the month moves back another 11 days (on this fragment of the parapegma, it will fall on the hole 18-11 = 7). Accordingly, we rearrange all the pins with the numbers of days. During these two years, the beginning of the month has moved back by 11 11 = 22 days. Therefore, in the third year, the insertion of the 13th month will be made. As a result, with the beginning of the month in the fourth year, the pin will move 30-11 = 19 days ahead - into the hole 7 + 19 = 26. In general, the numbers of the holes of this parapegma fragment, corresponding to the beginning of the lunar month in subsequent years of the 19-year lunar cycle, can be written in tabular form:

After 19 years, the cycle is completely repeated. What is interesting here is the following. There are holes on the parapegma fragment corresponding to 30 days. Meanwhile, as can be seen from the tablet, if the Metonic cycle were perfectly accurate, the new moon could occur only in 19 of them. These days can be somehow distinguished, for example, by gilding the corresponding holes and writing in gold numbers next to each of them the number of the year in the 19-year cycle, in which the lunar month is counted from this hole (corresponding to a certain position of the stars in the sky!) If this is done, then it's okay that the pins fell out of the hole during the transportation of the parapegma, or that inquisitive boys rearranged them for fun at night. Remembering the number of the year in the 19-year cycle, we will immediately find places (holes) for the first days of the months, after which it is not difficult to establish all the others.

  • A perennial herbaceous plant that blooms in early spring, before the leaves appear. The flowers are large, broadly bell-shaped, light purple, at the beginning
  • The astronomical thought of the ancient Greeks from distant epochs developed in the scheme of the lunar-solar calendar; the number of days in their civil life went along the moon, from new moon to new moon; their calendar numbers thus showed only the age of the moon. But with that scientific realism that characterizes Greek culture, with that penetrating "surprise" with which the Greeks approached nature, they quickly learned that astronomical observations should reveal the connection between the phenomena of the starry sky and the movement of the Sun and that the calendar should reflect this connection. From the 8th century BC e. they knew an eight-year period (octoeteris) - a very primitive instrument, as we know. By the time of Solon the legislator (about the 6th century BC), the already corrected octoeteride was in operation in Attica; each period was extended by ½ day. Therefore, from two such periods it turned out:

    2.922 2 + 3 = 5.847 days = 198 lunar months = 16 solar years.

    This ratio gives quite an acceptable result for the Moon; but the solar year comes out equal to a day, i.e., days more than the Julian year. Consequently, for every 16 years of the solstice - the year of the ancient Greeks began with the summer solstice - shifted 3 days back in the calendar; the error is obvious, even with all the difficulty of the relevant observations. But already in the V century. Meton achieved a significant improvement. “This man has achieved the truth regarding the prediction of the phenomena of the starry sky, for the movements of the stars and the changes in the weather are fully consistent with his data; therefore, most Greeks until my time use its 19-year circle, ”wrote the historian Diodorus in the 1st century. BC e. That the meteorological, or climatological, predictions of the ancient Greeks went in parallel with astronomical predictions, this is one of characteristic features their general outlook, their knowledge of nature, was based on purely observational material, without any admixture of astrology. In what calendar form was it clothed?

    The annual circle of the Sun is divided into 12 equal parts(dodecatemorium), for 12 signs of the Zodiac; the origin of this division is a special question, very complex and not of interest to us now; for an ancient observer, it was essential that the change of annual sunrises and sunsets of the stars and - he thought - changes in the weather (episemasia) occur at certain moments of the passage of the Sun's circle; therefore, zodiac tables are built from observations, in which both phenomena are described according to 12 signs. It is clear that it is sufficient to compile such tables for 365 days of the year; then it remains only to coordinate them with the count of days in the civil lunar year and make these data publicly available - Greek science was never locked in temples and was not caste. To observe the solstices, Meton erected his steles (columns) and instruments on the Pnyx in Athens, at the very square of the public meetings, and everyone could definitely see his parapegmas, that is, calendars carved on stone.

    Archaeologists did not understand for a long time how these calendars could be arranged; after all, it is impossible to put 6,940 dates of a 19-year circle on a stone, repeating 19 rounds of the Sun in them for all the signs of the Zodiac. Only in 1902, during excavations of a theater in Miletus (in Asia Minor), fragments of such a parapegma were found; they immediately revealed an ingenious solution to this technical problem found by the Greeks. On fig. 9 shows one of the fragments of the monument; it shows a series of inscriptions arranged in rows; to the left of the lines, as well as between them, there are a number of small holes; there are 30 of them on the right column - which is shown from above by the Greek letter Λ; let's number all these holes, putting for clarity in front of the lines the numbers that are not on the monument.

    Rice. 9. Ancient Greek resettable calendar

    The translation of the inscription reads as follows:

    1 ♦ Sun in Aquarius

    2 ♦ The lion begins to enter at dawn and Lyra enters

    5 ♦ Swan sets at dusk

    ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦

    15 ♦ Andromeda in the morning at dawn begins to rise

    18 ♦ Aquarius mid rise

    19 ♦ Pegasus in the morning at dawn begins to rise

    21 ♦ Full centauri sets in the morning

    22 ♦ Full Hydra sets in the morning

    23 ♦ Whale sets at dusk

    24 ♦ Arrow sets, bringing Zephyr's time (spring)

    29 ♦ Whole swan at evening dawn sets

    30 ♦ [Arcturus] rises at dusk

    We see that this is a well-preserved zodiac table for 1 month, exactly at the time the Sun passes the sign of Aquarius. In our modern calendar, the Sun enters this sign (longitude 300°) around January 22; from here it would be easy, with the help of numbers placed before the lines, to determine the calendar dates of all other predicted phenomena. But now we must completely forget this solar dating; the Greeks did not know it. In their lunar calendar, the entry of the Sun into any of the signs jumped from date to date according to the years of the circle, as shown in 6. The eight-year period and the metonic circle, type A. But holes in the stone come to the rescue: if you know what date of the lunar calendar The sun in a given year enters the first sign, then it is enough to put pins with successive dates into all the holes both at the lines and between the lines, alternating months of 29 and 30 days according to the rules of the lunar calendar; then each of the rows of the table, i.e., each phenomenon, will fall on a well-defined date of the lunar year; everyone will immediately see what numbers important and interesting phenomena nature. So they finally found out the previously mysterious meaning of the word parapegma and its connection with the verb meaning “attach”, “stick”. It was a nationwide resettable calendar.

    Question about internal structure the Metonic circle among the Greeks has not yet been finally resolved by chronologists; for 19 years, 7 embolic months should be inserted (12 12 + 7 13 = 235); the ancients did not leave any precise description of the structure of the cycle in relation to the order in which they were placed. It is now commonly believed that the 3rd, 6th, 9th, 12th, 15th, 17th and 19th years of the circle were embolismic. Taking into account that the average solar year in this system comes out to be equal to a month, the reader can easily construct a table of the distribution of errors at the beginning of each of the lunar years, as was done for an 8-year period or for a free lunar calendar.

    The introduction of the Metonic circle is associated with the famous astronomical observation reported by Ptolemy: "The summer solstice observed by Meton and Euktemon is recorded under the Athenian archon Apseid, on the 21st day of the Egyptian month Famenot in the morning." Translation of dating and historical data very accurately determine the day of observation: it is June 27, 432 BC. e. But it is easy to verify from the table of equinoxes that the solstice was 432, June 28, at 2 hours, counting the day from noon, Athens time (Athens 1½ hours east of Greenwich). Consequently, Meton's observation is erroneous by no more than 1½ days - a good result for that era. The first day of the first Metonic circle is placed on the first neomenia after this solstice, which gives July 16, 432 BC. e., following most chronologists.

    Initially, various Greek centers had their own time counting systems, which led to considerable confusion. This was due to the independent adjustment of the calendar in each policy. There were differences in the definition of the beginning of the calendar year.

    The Athenian calendar is known, which consisted of twelve lunar months, the beginning of each of which approximately coincided with neomenia. The duration of the months varied within 29-30 days, and the calendar year consisted of 354 days.

    Since the true lunar year includes 354.36 days, the phases of the moon did not exactly correspond to the calendar dates to which they were attributed. Therefore, the Greeks distinguished between the calendar "new moon", that is, the first day of the month and the actual new moon.

    The names of the months in Greece were in most cases associated with certain holidays and only indirectly correlated with the seasons.

    The beginning of the Athenian year fell on the month of Hecatombeon (July-August), associated with the summer solstice. To align the calendar year with the solar year, the 13th (embolismic) month, the 2nd Poseideon, was inserted in special years, lasting 29-30 days.

    In 432 BC Athenian astronomer Meton developed a new 19-year cycle with seven embolismic years: 3rd, 6th, 8th, 11th, 14th, 17th and 19th. This order, called the "Metonic cycle", provided a fairly high accuracy. The daily discrepancy between solar and lunar years accumulated over 312 solar years.

    Later, the cycles of Calippus and Hipparchus were developed, which further refined the lunisolar calendar. However, in practice, their amendments were almost never applied.

    Up to the II century. BC e. The 13th month was added as the need arose, and sometimes for political and other reasons.

    The Greeks did not know the seven-day week and counted the days within a month by decades.

    The dating of the events in Athens was carried out according to the names of the archon officials. From the 4th century BC e. The chronology according to the Olympiads, which were held once every four years, became generally accepted.

    The beginning of the era was considered the first Olympiad, held in the summer of 776 BC.

    In the Hellenistic era in Greece, various eras were used: the era of Alexander, the era of the Seleucids, etc.

    The official calendar, due to deviations from the solar year, was inconvenient for agriculture. Therefore, the Greeks often used a kind of agricultural calendar based on the apparent movements of the stars, on the change of seasons. Detailed description He gave such a calendar in the form of advice to the farmer back in the 8th century. BC e. Hellenic poet Hesiod.

    Such folk calendar had a great practical value and was preserved along with the official account of time for many centuries Greek history.

    ChronicleThe Roman calendar set the official
    and the religious basis of the 12-month year,
    which lasted 355 days until
    The Julian calendar was introduced.

    Short review

    Caesar's Julian calendar was based on
    mathematical and astronomical calculations
    Greek world, where Egyptian and
    Babylonian patterns. Caesar's successor, Augustus,
    demonstrated his vast erudition,
    installing large public solar panels in Rome
    a clock that used an obelisk as an arrow.
    Here the Roman fascination with eastern astronomy
    merged with the assumption that the reign
    August was predetermined by the divine cycle.

    Sundial

    Time and calendar

    The Roman year was governed by calendars which
    determine the days that are suitable and not suitable for
    social activities, religious holidays and
    other events. There was also an 8 day weekly cycle,
    which in public view
    calendars were designated by letters from A to H. Over time
    time, this civil calendar began strongly
    diverge from the natural solar year. Julius
    Caesar rectified this by making 46 B.C. 445 days and
    then entering the julian calendar which was based
    on precise astronomical calculations and still
    used Orthodox Church.

    Time and calendar (2)

    The Julian calendar was not enough
    accurate and gave an error of 1 day in 128 years. In 1582
    the spring equinox has moved back by (1582325)/128 = 10 days. Because of the importance of this holiday
    for Christendom, the Catholic Church was
    convinced of the need for calendar reform.
    The next Pope, who came in 1572, is Gregory
    XIII reformed the calendar on February 24, 1582.
    (all Christians were commanded to count October 5
    1582 - 15 October). The calendar is named
    Gregorian.

    Time and calendar (3)

    The Romans, like the Greeks, dated events by years.
    board of consuls (in turn, the Greeks -
    magistrates). It could also indicate the exact date
    which was measured from the founding of Rome in 753 to
    AD To determine the time, both night and day were
    divided by 12 equal hours. Because
    the length of the day depended on the date and on
    geographic latitude, in different seasons and in different
    places, the hours were also of different lengths in the solar
    Mediterranean.

    Year numbering

    In ancient Greece every year in every city
    had its name after the chief official
    this year - in Athens by the first archon, in Sparta
    according to the first ephor, etc. Also the names of the months in
    each city had its own.
    When the Romans come to replace the Greeks, they have everything
    same: years are not numbered, but are indicated by names
    officials (“to the consulate of such and such”).

    Chronological tables

    Real chronological
    tables that were
    Greeks and Romans, looked like
    long lists of names - like
    phone books. For example,
    "To the archonship of Kalliad... to
    archonship of Euthyn... in
    archonship of Herond.

    Time

    The Greeks imagined time moving on
    one place - like a starry firmament, which
    revolves over the world in the same and unchanging way.
    For the Greek, progress, if it ever existed, was at one time
    in an immemorial beginning, under the titan Prometheus, and after
    this life seemed eternal, stable and
    unchanged and all the years similar friend on a friend.

    Facts lie

    Information where they write: “The Greeks so honored the Olympic
    games that led their calendar according to the Olympics” is erroneous. Because some people kept track of time for the Olympics
    Greek historians to keep track of a long series of events.
    But it was their armchair fiction, and nothing more. None
    document, there were no such dates in any of the inscriptions. The Greeks did not
    reckoning for the Olympics, they did not conduct any
    chronology. Years in their minds were as if scattered
    motley motionless scattering.