The 7th century is the period from 601 to 700 in accordance with the Julian calendar in the Common Era. The Muslim conquests began with the unification of Arabia by Muhammad starting in 622. After Muhammad's death in 632, Islam expanded beyond the Arabian Peninsula under the Rashidun Caliphate and the Umayyad Caliphate; the Islamic conquest of Persia in the 7th century led to the downfall of the Sassanid Empire. Conquered during the 7th century were Syria, Armenia and North Africa; the Byzantine Empire continued suffering setbacks during the rapid expansion of the Muslim Empire. In the Iberian Peninsula, the 7th century was the Siglo de Concilios, that is, century of councils, referring to the Councils of Toledo. In China, the Sui dynasty was replaced by the Tang dynasty, which set up its military bases from Korea to Central Asia, was next to the Umayyad's later. China began to reach its height. Silla allied itself with the Tang Dynasty, subjugating Baekje and defeating Goguryeo to unite the Korean Peninsula under one ruler.
The Asuka period persisted in Japan throughout the 7th century. Harsha united Northern India, which had reverted to small republics and states after the fall of the Gupta Empire in the 6th century. Islam begins in Arabia; the first known Croatian archon Porga establishes the Duchy of Croatia. The world's population shrinks to about 208 million people; the Anglo-Saxon Heptarchy emerges at the last in England. Sutton Hoo ship burial, East Anglia. Xuanzang traveled from China to India, before returning to Chang'an in China to translate Buddhist scriptures. Timgad, Algeria, is destroyed by Berbers. End of sporadic Buddhist rule in the Sindh. Croats enter their present territory early in the 7th century, settling in six distinct tribal delimitations. Teotihuacan is sacked; the political and religious buildings are burned. The religion of Shugendo evolves from Buddhism, Taoism and other influences in the mountains of Japan; the Bulgars arrive in the Balkans. Arab traders penetrate the area of Lake Chad. Earliest attested English poetry.
Side panels, Basilica of Sant'Apollinare in Classe, are made. Main compound, Horyu-ji, Nara Prefecture, is built. Asuka period. 7th and 9th century – Mosaics above apse, Basilica of Sant'Apollinare in Classe, are made. 600: Smallpox spreads from India into Europe. 602: The Third Chinese domination of Vietnam starts following the collapse of the Early Lý dynasty. 603: Last mention of the Roman Senate in Gregorian Register. It mentions that the senate empress Leontia. 606: Boniface elected papal successor on the death of Pope Sabinian. He sought and obtained a decree from Byzantine Emperor Phocas which stated that "the See of Blessed Peter the Apostle should be the head of all the Churches"; this ensured that the title of "Universal Bishop" belonged to the Bishop of Rome. 607: Hōryū-ji temple believed to have been completed by 607 in Ikaruga, Japan. 610: Heraclius arrives by ship from Africa at Constantinople, overthrows East Roman Emperor Phocas and becomes Emperor. His first major act is to change the official language of the East Roman Empire from Latin to Greek.
615: The Sassanid Empire under Shah Khosrau II sacks Jerusalem, taking away the relic of the True cross. 615: Pacal the Great becomes king of the Mayan city-state of Palenque 616: Shah Chosroes II invades Egypt. 616: Aethelfrith of Northumbria defeats the Welsh in a battle at Chester in England. 618: Tang Dynasty of China do initiated by Li Yuan. 618: The Chenla kingdom absorbed Funan. Guangzhou, becomes a major international seaport, hosting maritime travelers from Egypt, East Africa, Persia, Sri Lanka, South East Asia, including Muslims, Jews and Nestorian Christians. 622: Year one of the Islamic calendar begins, during which the Hijra occurs—Muhammad and his followers emigrate from Mecca to Medina in September. 623: The Frankish merchant Samo, supporting the Slavs fighting their Avar rulers, becomes the ruler of the first known Slav state in Central Europe. 626: The Avars and the Persians jointly besiege but fail to capture Constantinople. 627: Emperor Heraclius defeats the Persians, ending the Roman-Persian Wars.
629: The Byzantine-Arab Wars begin. Much of the Roman Empire is conquered by Muslim Arabs led by Khalid ibn al-Walid. 629–630: Emperor Taizong's campaign against Eastern Tujue, Chinese Tang Dynasty forces under commanders Li Jing and Li Shiji destroy the Göktürk Khanate. 632: The Muslim conquests begin. 635-649: Alopen, a Persian Christian priest introduces Nestorian Christianity into China. 636: Around this time the Battle of al-Qādisiyyah resulted in a decisive victory for Muslims in the Islamic conquest of Persia, the Persian Empire is conquered by Muslim Arabs led by Sad Ibn Abi Waqqas. 638: Emperor Taizong issues an edict of universal toleration of religions. 639: Muslim conquest of Egypt and Armenia. 639: Unsuccessful revolt of Ashina Jiesheshuai of the Turkic people against Tang China. 641: The Coptic period, in its more specific definition, ends when Islam is introduced into Egypt. 649-683: Chinese Emperor Gaozong permits establishment of Christian monasteries in each of 358 prefectures.
650: The Khazar-Arab Wars begin. Mid-7th century – Durga Mahishasura-mardini, rock-cut relief, Tamil Nadu, India, is made. Pallava period, it is now kept at University of Michigan, Ann Arbor. Mid-7th century - Portrait of Lord Pacal, from his tomb, Temple of the Inscripti
The Hebrew or Jewish calendar is a lunisolar calendar used today predominantly for Jewish religious observances. It determines the dates for Jewish holidays and the appropriate public reading of Torah portions and daily Psalm readings, among many ceremonial uses. In Israel, it is used for religious purposes, provides a time frame for agriculture and is an official calendar for civil purposes, although the latter usage has been declining in favor of the Gregorian calendar; the present Hebrew calendar is the product including a Babylonian influence. Until the Tannaitic period, the calendar employed a new crescent moon, with an additional month added every two or three years to correct for the difference between twelve lunar months and the solar year; the year in which it was added was based on observation of natural agriculture-related events in ancient Israel. Through the Amoraic period and into the Geonic period, this system was displaced by the mathematical rules used today; the principles and rules were codified by Maimonides in the Mishneh Torah in the 12th century.
Maimonides' work replaced counting "years since the destruction of the Temple" with the modern creation-era Anno Mundi. The Hebrew lunar year is about eleven days shorter than the solar year and uses the 19-year Metonic cycle to bring it into line with the solar year, with the addition of an intercalary month every two or three years, for a total of seven times per 19 years. With this intercalation, the average Hebrew calendar year is longer by about 6 minutes and 40 seconds than the current mean tropical year, so that every 217 years the Hebrew calendar will fall a day behind the current mean tropical year; the era used. As with Anno Domini, the words or abbreviation for Anno Mundi for the era should properly precede the date rather than follow it. AM 5779 began at sunset on 9 September 2018 and will end at sunset on 29 September 2019; the Jewish day is of no fixed length. The Jewish day is modeled on the reference to "...there was evening and there was morning..." in the creation account in the first chapter of Genesis.
Based on the classic rabbinic interpretation of this text, a day in the rabbinic Hebrew calendar runs from sunset to the next sunset. Halachically, a day ends and a new one starts when three stars are visible in the sky; the time between true sunset and the time when the three stars are visible is known as'bein hashmashot', there are differences of opinion as to which day it falls into for some uses. This may be relevant, for example, in determining the date of birth of a child born during that gap. There is no clock in the Jewish scheme. Though the civil clock, including the one in use in Israel, incorporates local adoptions of various conventions such as time zones, standard times and daylight saving, these have no place in the Jewish scheme; the civil clock is used only as a reference point – in expressions such as: "Shabbat starts at...". The steady progression of sunset around the world and seasonal changes results in gradual civil time changes from one day to the next based on observable astronomical phenomena and not on man-made laws and conventions.
In Judaism, an hour is defined as 1/12 of the time from sunrise to sunset, so, during the winter, an hour can be much less than 60 minutes, during the summer, it can be much more than 60 minutes. This proportional hour is known as a sha'ah z'manit. A Jewish hour is divided into parts. A part is 1/18 minute; the ultimate ancestor of the helek was a small Babylonian time period called a barleycorn, itself equal to 1/72 of a Babylonian time degree. These measures are not used for everyday purposes. Instead of the international date line convention, there are varying opinions as to where the day changes. One opinion uses the antimeridian of Jerusalem. Other opinions exist as well; the weekdays proceed to Saturday, Shabbat. Since some calculations use division, a remainder of 0 signifies Saturday. While calculations of days and years are based on fixed hours equal to 1/24 of a day, the beginning of each halachic day is based on the local time of sunset; the end of the Shabbat and other Jewish holidays is based on nightfall which occurs some amount of time 42 to 72 minutes, after sunset.
According to Maimonides, nightfall occurs. By the 17th century, this had become three-second-magnitude stars; the modern definition is when the center of the sun is 7° below the geometric horizon, somewhat than civil twilight at 6°. The beginning of the daytime portion of each day is determined both by sunrise. Most halachic times are based on some combination of these four times and vary from day to day throughout the year and vary depending on location; the daytime hours are divided into Sha'oth Zemaniyoth or "Halachic hours" by taking the time between sunrise and sunset or between dawn and nightfall and dividing it into 12 equal hours. The nighttime hours are s
The 9th century was a period from 801 to 900 in accordance with the Julian calendar in the Common Era. Around the 9th century the Edo people of what is now southeastern Nigeria developed bronze casts of humans and mythical creatures; these bronzes, which were used as vessels, amulets and sacrificial tools, are among the earliest made bronzes found in Nigeria. Most items were part of a burial of a nobleman culture in the northern part of benin empire. Evidence of long distance trade between benin empire and poutugist was discovered through the thousands of glass beads found at Old Cairo at the workshops of Fustat; the development of the Benin Kingdom can be attributed to the proficiency at advanced metallurgy seen in the bronze jewelry crafted by local artisans. The Ghana Empire was located in what is now western Mali, it is considered the first of the Sahelian Kingdoms, which would exist in some form until the early 20th century. Britain experienced a great influx of Viking peoples in the 9th century as the Viking Age continued from the previous century.
The kingdoms of the Heptarchy were conquered by the Danes, who set up Anglo-Saxon puppet rulers in each kingdom. This invasion was achieved by a huge military force known as the Great Heathen Army, led by Ivar the Boneless, Halfdan Ragnarsson, Guthrum; this Danish army first arrived in Britain in 865 in East Anglia. After conquering that kingdom, the army proceeded to capture the city of York and establish the kingdom of Jorvik; the Danes went on to subjugate the kingdom of Northumbria and to take all but the western portion of Mercia. The remaining kingdom of Wessex was the only kingdom of the Heptarchy left. Alfred the Great managed to maintain his kingdom of Wessex and push back the Viking incursions, relieving the neighbouring kingdoms from the threat of the Danes following his famous victory over them at the Battle of Ethandun in 878. Alfred re-established Anglo-Saxon rule over the western half of Mercia, the Danelaw was established which separated Mercia into halves, the eastern half remaining under the control of the Danes.
Ireland was affected by the Viking expansion across the North Sea. Extensive raids were carried out all along the coast and permanent settlements were established, such as that of Dublin in 841. Particular targets for these raids were the monasteries on the western coast of Ireland, as they provided a rich source for loot. On such raids the Vikings set up impermanent camps, which were called longphorts by the Irish—this period of Viking raids on the coasts of Ireland has been named the longphort phase after these types of settlements. Ireland in the 9th century was organised into an amalgam of small kingdoms, called tuatha; these kingdoms were sometimes ruled by a single, provincial ruler. If such a ruler could establish and maintain authority over a portion of these tuatha, he was sometimes granted the title of High King. Scotland experienced significant Viking incursions during the 9th century; the Vikings established themselves in coastal regions in northern Scotland, in the northern islands such as Orkney and Shetland.
The Viking invasion and settlement in Scotland provided a contributing factor in the collapse of the kingdoms of the Picts, who inhabited most of Scotland at the time. Not only were the Pictish realms either destroyed or weakened, the Viking invasion and settlement may have been the reason for the movement of Kenneth MacAlpin, the king of Dál Riata at that time; the kingdom of Dál Riata was located on the western coast of Scotland, Viking incursions destroyed it after the death of its previous king, Áed mac Boanta in 839, according to the Annals of Ulster. This may have caused the new king, MacAlpin, to move to the east, conquer the remnants of the Pictish realms. MacAlpin became king of the Picts in 843 and kings would be titled as the King of Alba or King of Scots. Art in the 9th century was dedicated to the Gospel and employed as basic tools of liturgy of the Roman Orthodox Church. Thousands of golden art objects were made: Sacred cups, reliquaries, rosaries, altar pieces, statues of the Virgin and Child or Saints all kept the flame of western art from dying out.
Architecture began to revive to some extent by the 9th century, taking the form of Church facilities of all kinds, the first castle fortifications since Roman times began to take form in simple "moat and bailey" castles, or simple "strong point" tower structures, with little refinement. 9th - 13th century - El Castillo, Chichen Itza, Mexico, is built. Itza culture. An unknown event causes the decline of the Maya Classical Era. Beowulf might have been written down in this century. Reign of Charlemagne, concurrent Carolingian Renaissance in Western Europe. Large-scale Viking attacks on Europe begin, devastating countless numbers of people. Oseberg ship burial; the Magyars begin their conquest of Pannonia, a process that will take several decades to be completed. The Tukolor settle in the Senegal river valley. Muslim traders settle in the southeast of Madagascar. 800: Charlemagne is crowned emperor of Rome by Pope Leo III. 800: Charlemagne expands the Frankish state and founds the Carolingian Empire.
He rules over the empire for 14 years. 800: An Arab fleet sails up the Tiber. 800 – 909: Rule of Aghlabids as an independent Muslim dynasty in North Africa, with their capital at Tunis. 802: Jayavarman II of the Khmer people in Cambodia founds the Khmer empire and establishes the Angkorian dynasty. 803: Construction on t
The Berber calendar is the agricultural calendar traditionally used by Berbers. It is known as the fellaḥi; the calendar is utilized to regulate the seasonal agricultural works. The Islamic calendar, a lunar calendar, is not suited for agriculture because it does not relate to seasonal cycles. In other parts of the Islamic world either Iranian solar calendars, the Coptic calendar, the Rumi calendar, or other calendars based on the Julian calendar, were used before the introduction of the Gregorian calendar; the current Berber calendar is a legacy of the Roman province of Mauretania Caesariensis and the Roman province of Africa, as it is a surviving form of the Julian calendar. The latter calendar was used in Europe before the adoption of the Gregorian calendar, with month names derived from Latin. Berber populations used various indigenous calendars, such as that of the Guanche autochthones of the Canary Islands; however little is known of these ancient calendrical systems. The agricultural Berber calendar still in use is certainly derived from the Julian calendar, introduced in the Roman province of Africa at the time of Roman domination.
The names of the months of this calendar are derived from the corresponding Latin names and races of the Roman calendar denominations of Kalends and Ides exist: El Qabisi, an Islamic jurisconsult by Kairawan who lived in the 11th century, condemned the custom of celebrating "pagans'" festivals and cited, among traditional habits of North Africa, that of observing January Qalandas. The length of the year and of the individual months is the same as in the Julian calendar: three years of 365 days followed by a leap year of 366, without exceptions, 30- and 31-day months, except for the second one that has 28 days; the only slight discrepancy lies in that the extra day in leap years is not added at the end of February, but at the end of the year. This means that the beginning of the year corresponds to the 14th day of January in the Gregorian calendar, which coincides with the offset accumulated during the centuries between astronomical dates and the Julian calendar. In addition to the subdivision by months, within the traditional agricultural calendar there are other partitions, by "seasons" or by "strong periods", characterized by particular festivals and celebrations.
Not all the four seasons have retained a Berber denomination: the words for spring and autumn are used everywhere, more sparingly the winter and, among northern Berbers, the Berber name for the autumn has been preserved only in Jebel Nafusa. Spring tafsut – Begins on 15 furar Summer anebdu – Begins on 17 mayu Autumn amwal / aməwan ( – Begins on 17 ghusht Winter tagrest - Begins on 16 numbír An interesting element is the existing opposition between two 40-day terms, one representing the coldest part of winter and one the hottest period of summer; the coldest period is made up by 20 "white nights", from 12 to 31 dujamber, 20 "black nights", beginning on the first day of yennayer, corresponding to the Gregorian 14 January. The first day of the year is celebrated in various ways in the different parts of North Africa. A widespread tradition is a meal with particular foods. In some regions, it is marked by the sacrifice of an animal. In Algeria, such a holiday is celebrated by many people who don't use the Berber calendar in daily life.
A characteristic trait of this festivity, which blurs with the Islamic Day of Ashura, is the presence, in many regions, of ritual invocations with formulas like bennayu, babiyyanu, bu-ini, etc. Such expressions, according to many scholars, may be derived from of the ancient bonus annus wishes. A curious aspect of the Yennayer celebrations concerns the date of New Year's Day. Though once this anniversary fell everywhere on 14 January, because of a mistake introduced by some Berber cultural associations active in recovering customs on the verge of extinction, at present in a wide part of Algeria it is common opinion that the date of "Berber New Year's Day" is 12 January and not the 14th; the celebration at the 12, two days before the traditional one, it had been explicitly signaled in the city of Oran. El Azara is the period of the year extending, according to the Berber calendar, from 3 to 13 February and known by a climate sometimes hot, sometimes cold. Before the cold ends and spring begins there is a period of the year, feared.
It consists of ten days straddling the months of furar and mars, it is characterised by strong winds. It is said that, during this term, one should suspend many activities, should not marry nor go out during the night, leaving instead full scope to mysterious powers, which in that period are active and celebrate their weddings. Due to a linguistic taboo, in Djerba these creatures are called imbarken, i.e. "the blessed ones", whence this period takes its name. Jamrat el Ma, "embers of the sea", 27 February, is marked by a rise in sea temperature. Jamrat el Trab, "land embers" in English, is the period from 6 to 10 March and known to be marked by a mixture of heavy rain and sunny weather. Jamrat or coal is a term used t
Japanese calendar types have included a range of official and unofficial systems. At present, Japan uses the Gregorian calendar together with year designations stating the year of the reign of the current Emperor; the lunisolar Chinese calendar was introduced to Japan via Korea in the middle of the sixth century. After that, Japan calculated its calendar using various Chinese calendar procedures, from 1685, using Japanese variations of the Chinese procedures, but in 1873, as part of Japan's Meiji period modernization, a calendar based on the solar Gregorian calendar was introduced. In Japan today, the old Chinese calendar is ignored. Japan has had more than one system for designating years. Including: The Chinese sexagenary cycle was introduced early into Japan, it was used together with era names, as in the 1729 Ise calendar shown above, for "the 14th year of Kyōhō, tsuchi-no-to no tori", i.e. 己酉. Now, the cycle is used except around New Year; the era name system was introduced from China, has been in continuous use since AD 701.
Since the Taishō Emperor's ascension in 1912, each emperor's reign has begun a new era. Nengō are the official means of dating years in Japan, all government business is conducted using that system, it is in general use in private and personal business. The Japanese imperial year is based on the date of the legendary founding of Japan by Emperor Jimmu in 660 BC, it was first used in the official calendar in 1873. However, it never replaced era names, since World War II has been abandoned; the Western Common Era system has come into common use since the Meiji period. Now, most people know it, as well as era names; the official dating system known as nengō, has been in use since the late 7th century. Years are numbered within eras. Beginning with Meiji, each reign has been one era, but many earlier Emperors decreed a new era upon any major event; the nengō system remains in wide use on official documents and government forms. The imperial year system was used from 1872 to the Second World War. Imperial year 1 was the year when the legendary Emperor Jimmu founded Japan – 660 BC according to the Gregorian Calendar.
Usage of kōki dating can be a nationalist signal, pointing out that the history of Japan's imperial family is longer than that of Christianity, the basis of the Anno Domini system. Kōki 2600 was a special year; the 1940 Summer Olympics and Tokyo Expo were planned as anniversary events, but were canceled due to the Second Sino-Japanese War. The Japanese naval Zero Fighter was named after this year. After the Second World War, the United States occupied Japan, stopped the use of kōki by officials. Today, kōki is used, except in some judicial contexts; the 1898 law determining the placement of leap years is based on the kōki years, using a formula, equivalent to that of the Gregorian calendar: if the kōki year number is evenly divisible by four, it is a leap year, unless the number minus 660 is evenly divisible by 100 and not by 400. Thus, for example, the year Kōki 2560 is divisible by 4; the Japanese government has announced a new period of year on 2019 April Reiwa. The Heisei Period will end on 2019 April 30 and so the new period of year is expected to start on first of May 2019.
See "Seasonal days", below. The modern Japanese names for the months translate to "first month", "second month", so on; the corresponding number is combined with the suffix 月. The table below uses traditional numerals. In addition, every month has a traditional name, still used by some in fields such as poetry; the opening paragraph of a letter or the greeting in a speech might borrow one of these names to convey a sense of the season. Some, such as Yayoi and Satsuki, do double duty as given names; these month names appear from time to time on jidaigeki, contemporary television shows and movies set in the Edo period or earlier. The old Japanese calendar was an adjusted lunar calendar based on the Chinese calendar, the year—and with it the months—started anywhere from about 3 to 7 weeks than the modern year, so in historical contexts it is not accurate to equate the first month with January. Japan uses a seven-day week, aligned with the Western calendar; the seven-day week, with names for the days corresponding to the Latin system, was brought to Japan around AD 800 with the Buddhist calendar.
The system was used for astrological purposes and little else until 1876. The names of the days come from the five visible planets, which in turn are named after the five Chinese elements, from the moon and sun. On the origin of the names of the days of the week see East Asian Seven Luminaries. Sunday and Saturday are regarded as "Western style take-a-rest days". Since the late 19th century, Sunday has been regarded as a "full-time holiday", Saturday a half-time holiday; these holidays have no religious meaning. Many Japanese retailers
Francia called the Kingdom of the Franks, or Frankish Empire was the largest post-Roman barbarian kingdom in Western Europe. It was ruled by the Franks during the Early Middle Ages, it is the predecessor of the modern states of Germany. After the Treaty of Verdun in 843, West Francia became the predecessor of France, East Francia became that of Germany. Francia was among the last surviving Germanic kingdoms from the Migration Period era before its partition in 843; the core Frankish territories inside the former Western Roman Empire were close to the Rhine and Maas rivers in the north. After a period where small kingdoms inter-acted with the remaining Gallo-Roman institutions to their south, a single kingdom uniting them was founded by Clovis I, crowned King of the Franks in 496, his dynasty, the Merovingian dynasty, was replaced by the Carolingian dynasty. Under the nearly continuous campaigns of Pepin of Herstal, Charles Martel, Pepin the Short and Louis the Pious—father, grandson, great-grandson and great-great-grandson—the greatest expansion of the Frankish empire was secured by the early 9th century, by this point dubbed as the Carolingian Empire.
During the Merovingian and Carolingian dynasties the Frankish realm was one large kingdom polity subdivided into several smaller kingdoms effectively independent. The geography and number of subkingdoms varied over time, but a basic split between eastern and western domains persisted; the eastern kingdom was called Austrasia, centred on the Rhine and Meuse, expanding eastwards into central Europe. It evolved into the Holy Roman Empire; the western kingdom Neustria was founded in Northern Roman Gaul, as the original kingdom of the Merovingians it came over time to be referred to as Francia, now France, although in other contexts western Europe could still be described as "Frankish". In Germany there are prominent other places named after the Franks such as the region of Franconia, the city of Frankfurt, Frankenstein Castle; the Franks emerged in the 3rd century as a term covering Germanic tribes living on the northern Rhine frontier of the Roman Empire, including the Bructeri, Chamavi and Salians.
While all of them had a tradition of participating in the Roman military, the Salians were allowed to settle within the Roman Empire. In 357, having been living in the civitis of Batavia for some time, Emperor Julian, who forced the Chamavi back out of the empire at the same time, allowed the Salians to settle further away from the border, in Toxandria; some of the early Frankish leaders, such as Flavius Bauto and Arbogast, were committed to the cause of the Romans, but other Frankish rulers, such as Mallobaudes, were active on Roman soil for other reasons. After the fall of Arbogastes, his son Arigius succeeded in establishing a hereditary countship at Trier and after the fall of the usurper Constantine III some Franks supported the usurper Jovinus. Jovinus was dead by 413, but the Romans found it difficult to manage the Franks within their borders; the Frankish king Theudemer was executed by the sword, in c. 422. Around 428, the king Chlodio, whose kingdom may have been in the civitas Tungrorum, launched an attack on Roman territory and extended his realm as far as Camaracum and the Somme.
Though Sidonius Apollinaris relates that Flavius Aetius defeated a wedding party of his people, this period marks the beginning of a situation that would endure for many centuries: the Germanic Franks ruled over an increasing number of Gallo-Roman subjects. The Merovingians, reputed to be relatives of Chlodio, arose from within the Gallo-Roman military, with Childeric and his son Clovis being called "King of the Franks" in the Gallo-Roman military before having any Frankish territorial kingdom. Once Clovis defeated his Roman competitor for power in northern Gaul, Syagrius, he turned to the kings of the Franks to the north and east, as well as other post-Roman kingdoms existing in Gaul: Visigoths and Alemanni; the original core territory of the Frankish kingdom came to be known as Austrasia, while the large Romanised Frankish kingdom in northern Gaul came to be known as Neustria. Chlodio's successors are obscure figures, but what can be certain is that Childeric I his grandson, ruled a Salian kingdom from Tournai as a foederatus of the Romans.
Childeric is chiefly important to history for bequeathing the Franks to his son Clovis, who began an effort to extend his authority over the other Frankish tribes and to expand their territorium south and west into Gaul. Clovis converted to Christianity and put himself on good terms with the powerful Church and with his Gallo-Roman subjects. In a thirty-year reign Clovis defeated the Roman general Syagrius and conquered the Kingdom of Soissons, defeated the Alemanni and established Frankish hegemony over them. Clovis defeated the Visigoths and conquered all of their territory north of the Pyrenees save Septimania, conquered the Bretons and made them vassals of Francia, he conquered most or all of the neighbouring Frankish tribes along the Rhine and incorporated them into his kingdom. He incorporated the various Roman military settlements scattered over Gaul: the Saxons of Bessin, the Britons and the Alans of Armorica and Loire valley or the Taifals of Poitou to name a few prominent ones. By the end of his life, Clovis ruled all of Gaul save the Gothic province of Septimania and the Burgundian kingdom in the southeast.
The Merovingians were a hereditary monarchy. The Frankish kings adhered to th
The Buddhist calendar is a set of lunisolar calendars used in mainland Southeast Asian countries of Cambodia, Laos and Thailand as well as in Sri Lanka and Chinese populations of Malaysia and Singapore for religious or official occasions. While the calendars share a common lineage, they have minor but important variations such as intercalation schedules, month names and numbering, use of cycles, etc. In Thailand, the name Buddhist Era is a year numbering system shared by the traditional Thai lunisolar calendar and by the Thai solar calendar; the Southeast Asian lunisolar calendars are based on an older version of the Hindu calendar, which uses the sidereal year as the solar year. One major difference is that the Southeast Asian systems, unlike their Indian cousins, do not use apparent reckoning to stay in sync with the sidereal year. Instead, they employ their versions of the Metonic cycle. However, since the Metonic cycle is not accurate for sidereal years, the Southeast Asian calendar is drifting out of sync with the sidereal one day every 100 years.
Yet no coordinated structural reforms of the lunisolar calendar have been undertaken. Today, the traditional Buddhist lunisolar calendar is used for Theravada Buddhist festivals, no longer has the official calendar status anywhere; the Thai Buddhist Era, a renumbered Gregorian calendar, is the official calendar in Thailand. The calculation methodology of the current versions of Southeast Asian Buddhist calendars is based on that of the Burmese calendar, in use in various Southeast Asian kingdoms down to the 19th century under the names of Chula Sakarat and Jolak Sakaraj; the Burmese calendar in turn was based on the "original" Surya Siddhanta system of ancient India. One key difference with Indian systems is that the Burmese system has followed a variation of the Metonic cycle, it is unclear from where, how the Metonic system was introduced. The Burmese system, indeed the Southeast Asian systems, thus use a "strange" combination of sidereal years from Indian calendar in combination with the Metonic cycle better for tropical years.
In all Theravada traditions, the calendar's epochal year 0 date was the day in which the Buddha attained parinibbāna. However, not all traditions agree on when it took place. In Burmese Buddhist tradition, it was 13 May 544 BCE, but in Thailand, it was 11 March 545 BCE, the date which the current Thai lunisolar and solar calendars use as the epochal date. Yet, the Thai calendars for some reason have fixed the difference between their Buddhist Era numbering and the Christian/Common Era numbering at 543, which points to an epochal year of 544 BCE, not 545 BCE. In Myanmar, the difference between BE and CE can be 543 or 544 for CE dates, 544 or 543 for BCE dates, depending on the month of the Buddhist Era. In Sri Lanka, the difference between BE and CE is 544; the calendar recognizes two types of months: sidereal month. The Synodic months are used to compose the years while the 27 lunar sidereal days, alongside the 12 signs of the zodiac, are used for astrological calculations; the days of the month are counted in two halves and waning.
The 15th of the waxing is the civil full moon day. The civil new moon day is the last day of the month; because of the inaccuracy of the calendrical calculation systems, the mean and real New Moons coincide. The mean New Moon precedes the real New Moon; as the Synodic lunar month is 29.5 days, the calendar uses alternating months of 29 and 30 days. Various regional versions of Chula Sakarat/Burmese calendar existed across various regions of mainland Southeast Asia. Unlike Burmese systems, Lan Na, Lan Xang and Sukhothai systems refer to the months by numbers, not by names; this means reading ancient texts and inscriptions in Thailand requires constant vigilance, not just in making sure one is operating for the correct region, but for variations within regions itself when incursions cause a variation in practice. However, Cambodian month system, which begins with Margasirsa as the first month, demonstrated by the names and numbers; the Buddhist calendar is a lunisolar calendar in which the months are based on lunar months and years are based on solar years.
One of its primary objectives is to synchronize the lunar part with the solar part. The lunar months twelve of them, consist alternately of 29 days and 30 days, such that a normal lunar year will contain 354 days, as opposed to the solar year of ~365.25 days. Therefore, some form of addition to the lunar year is necessary; the overall basis for it is provided by cycles of 57 years. Eleven extra days are inserted in every 57 years, seven extra months of 30 days are inserted in every 19 years; this provides 20819 complete days to both calendars. This 57-year cycle would provide a mean year of about 365.2456 days and a mean month of about 29.530496 days, if not corrected. As such, the calendar adds an intercalary month in leap years and sometimes an intercalary day in great leap years; the intercalary month not only corrects the length of the year but corrects the accumulating error of the month to extent of half a day. The average length of the month is further corrected by adding a day to Nayon