Ab urbe condita
Ab urbe condita, or Anno urbis conditæ abbreviated as AUC in either case, is a convention, used in antiquity and by classical historians to refer to a given year in Ancient Rome. Ab urbe condita means "from the founding of the City," while anno urbis conditæ means "in the year since the City's founding." Therefore, the traditional year of the foundation of Rome, 753 BC, would be written AUC 1, while AD 1 would be AUC 754. The foundation of the Empire in 27 BC would be AUC 727. Usage of the term was more common during the Renaissance, when editors sometimes added AUC to Roman manuscripts they published, giving the false impression that the convention was used in antiquity. In reality, the dominant method of identifying years in Roman times was to name the two consuls who held office that year. In late antiquity, regnal years were in use, as was the Diocletian era in Roman Egypt after AD 293, in the Byzantine Empire after AD 537, following a decree by Justinian; the traditional date for the founding of Rome, 21 April 753 BC, is due to Marcus Terentius Varro.
Varro may have used the consular list and called the year of the first consuls "ab urbe condita 245," accepting the 244-year interval from Dionysius of Halicarnassus for the kings after the foundation of Rome. The correctness of this calculation has not been confirmed. From the time of Claudius onward, this calculation superseded other contemporary calculations. Celebrating the anniversary of the city became part of imperial propaganda. Claudius was the first to hold magnificent celebrations in honor of the anniversary of the city, in AD 48, the eight hundredth year from the founding of the city. Hadrian and Antoninus Pius held similar celebrations, in AD 121, in AD 147 and AD 148, respectively. In AD 248, Philip the Arab celebrated Rome's first millennium, together with Ludi saeculares for Rome's alleged tenth sæculum. Coins from his reign commemorate the celebrations. A coin by a contender for the imperial throne, explicitly states "ear one thousand and first", an indication that the citizens of the empire had a sense of the beginning of a new era, a Sæculum Novum.
The Anno Domini year numbering was developed by a monk named Dionysius Exiguus in Rome in AD 525, as a result of his work on calculating the date of Easter. Dionysius did not use the AUC convention, but instead based his calculations on the Diocletian era; this convention had been in use since AD 293, the year of the tetrarchy, as it became impractical to use regnal years of the current emperor. In his Easter table, the year AD 532 was equated with the 248th regnal year of Diocletian; the table counted the years starting from the presumed birth of Christ, rather than the accession of the emperor Diocletian on 20 November AD 284, or as stated by Dionysius: "sed magis elegimus ab incarnatione Domini nostri Jesu Christi annorum tempora praenotare". Blackburn and Holford-Strevens review interpretations of Dionysius which place the Incarnation in 2 BC, 1 BC, or AD 1, it has been calculated that the year AD 1 corresponds to AUC 754, based on the epoch of Varro. Thus, AUC 1 = 753 BC AUC 753 = 1 BC AUC 754 = AD 1 AUC 1000 = AD 247 AUC 1229 = AD 476 AUC 2206 = AD 1453 AUC 2753 = AD 2000 AUC 2772 = AD 2019 List of Latin phrases
6th century BC
The 6th century BC started the first day of 600 BC and ended the last day of 501 BC. This century represents the peak of a period in human history popularly known as Axial Age; this period saw the emergence of five major thought streams springing from five great thinkers in different parts of the world: Buddha and Mahavira in India, Zoroaster in Persia, Pythagoras in Greece and Confucius in China. Pāṇini, in India, composed a grammar for Sanskrit, in this century or later; this is the oldest still known grammar of any language. In Western Asia, the first half of this century was dominated by the Neo-Babylonian or Chaldean empire, which had risen to power late in the previous century after rebelling against Assyrian rule; the Kingdom of Judah came to an end in 586 BC when Babylonian forces under Nebuchadnezzar II captured Jerusalem, removed most of its population to their own lands. Babylonian rule was ended in the 540s by Cyrus; the Persian Empire continued to expand and grew into the greatest empire the world had known at the time.
In Iron Age Europe, the Celtic expansion was in progress. China was in the Autumn period. Mediterranean: Beginning of Greek philosophy, flourishes during the 5th century BC The late Hallstatt culture period in Eastern and Central Europe, the late Bronze Age in Northern Europe East Asia: the Spring and Autumn period. Confucianism and Moism flourish. Laozi founds Taoism West Asia: During the Persian empire, Zoroaster, a.k.a. Zarathustra, founded Zoroastrianism, a dualistic philosophy; this was the time of the Babylonian captivity of the ancient Jews. Ancient India: the Buddha and Mahavira found Buddhism and Jainism The decline of the Olmec civilization in Central America Mid-6th century BC: Foundation of Temple of Olympian Zeus. 598 BC: Jehoiachin succeeds Jehoiakim as King of Judah. 16 March 597 BC: Babylonians capture Jerusalem, replace Jehoiachin with Zedekiah as king. 595 BC: Psammetichus II succeeds Necho II as King of Egypt. 594 BC: Solon appointed Archon of Athens. 590 BC: Egyptian army sacks Napata, compelling the Cushite court to move to a more secure location at Meroe near the sixth Cataract.
589 BC: Apries succeeds Psammetichus II as King of Egypt. 588 BC: Nebuchadrezzar II of Babylon begins siege of Jerusalem. The conquerors destroy exile the land's remaining inhabitants. Babylonian Captivity for the Jews begins. 586 BC: death of King Ding of Zhou, King of the Zhou Dynasty of China 28 May 585 BC: A solar eclipse occurs as predicted by Thales, while Alyattes is battling Cyaxares. This leads to a truce; this is one of the cardinal dates. 585 BC/584 BC: Astyages succeeds Cyaxares as King of the Medes. 585 BC: King Jian of Zhou becomes King of the Zhou Dynasty. 583 BC: The Babylonians begin a siege against Tyre. 582 BC: Pythian Games founded at Delphi. 580 BC: Cambyses I succeeds Cyrus I as King of Anshan and head of the Achaemenid dynasty. 580 BC: Isthmian Games founded at Corinth 579 BC: Servius Tullius succeeds the assassinated Lucius Tarquinius Priscus as King of Rome. 573 BC: Nemean Games founded at Nemea. 572 BC: Death of King Jian of Zhou, King of the Zhou Dynasty of China. 571 BC: King Ling of Zhou becomes King of the Zhou Dynasty of China.
570 BC: Amasis II succeeds Apries as King of Egypt. 570 BC: Pythagoras of Samos is born. 570 BC: End of the Babylonian siege against the city of Tyre with a partial victory by the Babylonians. It was the longest siege of the city in history, lasting 13 years. 568 BC: Amtalqa succeeds his brother Aspelta as King of Kush. 562 BC: Amel-Marduk succeeds Nebuchadnezzar as King of Babylon. 560 BC: Neriglissar succeeds Amel-Marduk as King of Babylon. 560 BC/561 BC: Croesus becomes King of Lydia. 560 BC: Pisistratus seizes the Acropolis of Athens and declares himself tyrant. He is deposed in the same year. 550s BC: Carthage conquers Sicily and Corsica. 559 BC: King Cambyses I of Anshan dies and is succeeded by his son Cyrus II the Great. 558 BC: Hegesias removed as Archon of Athens. 558 BC: The Chinese state of Jin defeats its rival Qin in battle. 556 BC: Pisistratus is exiled from Athens to Euboea. 556 BC: Labashi-Marduk succeeds Neriglissar as King of Babylon. 556 BC/555 BC: Nabonidus succeeds Labashi-Marduk as King of Babylon.
550 BC: Abdera is destroyed by the Thracians. 550 BC: Cyrus II the Great overthrows Astyages of the Medes, establishing the Persian Empire. 550 BC: The Late Mumun Period begins in the Korean peninsula. 547 BC: Croesus, Lydian King, is defeated by Cyrus of Persia near the River Halys. 546 BC: Cyrus of Persia completes his conquest of Lydia, makes Pasargadae his capital. 544 BC: People of Teos migrate to Abdera, Thrace to escape the yoke of Persia. 544 BC: King Jing of Zhou becomes King of the Zhou Dynasty of China. 543 BC: Prince Vijaya establishes a Sinhalese dynasty of Sri Lanka. 543 BC: Pisistratus, tyrant of Athens, purifies the island of Delos. 540 BC: Greek city of Elea of southern Italy founded. 540 BC: Persians conquer Lycian city of Xanthos, now in southern Turkey. 539 BC: Babylon is conquered by Cyrus the Great, defeating Nabonidus. 538 BC: Return of some Jews from Babylonian exile who build the Second Temple about fifty years after the destruction of the First Temple, from 520 BC–516 BC. 537 BC: Jews transported to Babylon are allowed to return to Jerusalem, bringing to a close the Babylonian captivity.
536 BC: According to tradition, the Biblical prophet Daniel receives an angelic visitor
Taharqa spelled Taharka or Taharqo, was a pharaoh of the Twenty-fifth Dynasty of Egypt and qore of the Kingdom of Kush. Taharqa was the son of the Nubian king of Napata who had first conquered Egypt. Taharqa was the cousin and successor of Shebitku; the successful campaigns of Piye and Shabaka paved the way for a prosperous reign by Taharqa. Taharqa's reign can be dated from 690 BC to 664 BC. Evidence for the dates of his reign is derived from the Serapeum stele, catalog number 192; this stela records that an Apis bull born and installed in year 26 of Taharqa died in Year 20 of Psamtik I, having lived 21 years. This would give Taharqa a reign of 26 years and a fraction, in 690–664 BC. Taharqa explicitly states in Kawa Stela V, line 15, that he succeeded his predecessor after the latter's death with this statement: "I received the Crown in Memphis after the Falcon flew to heaven." The reference to Shebitku was an attempt by Taharqa to legitimise his accession to power. However, Taharqa never mentions the identity of the royal falcon and omits any mention of Shabaka's intervening reign between Shebitku and Taharqa because he ousted Shabaka from power.
In Kawa IV, line 7-13, Taharqa states: He sailed northward to Thebes amongst the beautiful young people that His Majesty, the late King Shabataqo/Shebitku, had sent from Nubia. He was there with him, he appreciated him more than any of his brothers.. The heart of his Majesty was in sadness about it until his Majesty became king, crowned as King of Upper and Lower Egypt, it was during the first year of his reign he remembered what he had seen of the temple when he was young. In Kawa V: line 15, Taharqa states “I was brought from Nubia amongst the royal brothers that his Majesty had brought; as I was with him, he liked me more than all his brothers and all his children, so that he distinguished me. I was loved by all, it was only after the hawk had flown to heaven that I received the crown in Memphis.”Therefore, Taharqa says that King Shebitku, fond of him, brought him with him to Egypt and during that trip he had the opportunity to see the deplorable state of the temple of Amun at Kawa, an event he remembered after becoming king.
But on Kawa V Taharqa says that sometime after his arrival in Egypt under a different king whom this time he chose not to name, there occurred the death of this monarch and his own accession to the throne occurred. Taharqa's evasiveness on the identity of his predecessor suggests that he assumed power in an irregular fashion and chose to legitimise his kingship by conveniently stating the possible fact or propaganda that Shebitku favoured him "more than all his brothers and all his children."Moreover, in lines 13 – 14 of Kawa stela V, His Majesty, is mentioned twice, at first sight the falcon or hawk that flew to heaven, mentioned in the next line 15, seems to be identical with His Majesty referred to directly before. However, in the critical line 15 which recorded Taharqa's accession to power, a new stage of the narrative begins, separated from the previous one by a period of many years, the king or hawk/falcon that flew to heaven is conspicuously left unnamed in order to distinguish him from His Majesty, Shebitku.
Moreover, the purpose of Kawa V, was to describe several separate events that occurred at distinct stages of Taharqa's life, instead of telling a continuous story about it. Therefore, the Kawa V text began with the 6th year of Taharqa and referred to the High Nile flood of that year before abruptly jumping back to Taharqa's youth at the end of line 13. In the beginning of line 15, Taharqa's coronation is mentioned and there is a description given of the extent of the lands and foreign countries under Egypt's control but the narrative switches abruptly back again to Taharqa's youth: "My mother was in Ta-Sety …. Now I was far from her as a twenty year old recruit, as I went with His Majesty to the North Land"; however afterwards the text jumps forward again to the time of Taharqa's accession: "Then she came sailing downstream to see me after a long period of years. She found me after I had appeared on the throne of Horus...". Hence, the Kawa V narrative switches from one event to another, has little to no chronological coherence or value.
Although Taharqa's reign was filled with conflict with the Assyrians, it was a prosperous renaissance period in Egypt and Kush. When Taharqa was about 20 years old, he participated in a historic battle with the Assyrian emperor Sennacherib at Eltekeh. According to the Hebrew Bible, at Hezekiah's request and the Egyptian/Kushite army managed to stall the Assyrian advance on Jerusalem, with Sennacherib abandoning the siege due to the loss of 185,000 soldiers at the hand of the Lord according to the Biblical account; the might of Taharqa's military forces was established at Eltekeh, leading to a period of peace in Egypt. During this period of peace and prosperity, the empire flourished. In the sixth year of Taharqa's reign, prosperity was aided by abundant rainfall and a large harvest. Taharqa took full advantage of the lull in fighting an
Republic of China (1912–1949)
The Republic of China controlled the Chinese mainland between 1912 and 1949. It was established in January 1912 after the Xinhai Revolution, which overthrew the Qing dynasty, the last imperial dynasty of China, its government moved to Taipei in December 1949 due to the Kuomintang's defeat in the Chinese Civil War. The Republic's first president, Sun Yat-sen, served only before handing over the position to Yuan Shikai, leader of the Beiyang Army, his party led by Song Jiaoren, won the parliamentary election held in December 1912. Song Jiaoren was assassinated shortly after and the Beiyang Army led by Yuan Shikai maintained full control of the Beiyang government. Between late 1915 and early 1916, Yuan Shikai tried to reinstate the monarchy before abdicating due to popular unrest. After Yuan Shikai's death in 1916, members of cliques in the Beiyang Army claimed their autonomy and clashed with each other. During this period, the authority of the Beiyang government was weakened by a restoration of the Qing dynasty.
In 1921, Sun Yat-sen's Kuomintang established a rival government in Canton City, Canton Province, together with the fledgling Communist Party of China. The economy of North China, overtaxed to support warlord adventurism, collapsed between 1927 and 1928. General Chiang Kai-shek, who became KMT leader after Sun Yat-sen's death, started the Northern Expedition military campaign in 1926 to overthrow the Beiyang government, completed in 1928. In April 1927, Chiang established a nationalist government in Nanking, massacred communists in Shanghai, which forced the CPC into armed rebellion, marking the beginning of the Chinese Civil War. There were industrialization and modernization, but conflict between the Nationalist government in Nanking, the CPC, remnant warlords, the Empire of Japan. Nation-building took a backseat to the Second Sino-Japanese War when the Imperial Japanese Army launched an offensive against China in 1937 that turned into a full-scale invasion. After the surrender of Japan at the end of World War II in 1945, the Chinese Civil War resumed in 1946 between the KMT and CPC, with both sides receiving foreign assistance due to the Cold War from the USA and USSR, respectively.
During this period, the 1946 Constitution of the Republic of China replaced the 1928 Organic Law as the Republic's fundamental law. Near the end of the Chinese Civil War in 1949, the Chinese Communist Party established the People's Republic of China, overthrowing the nationalist government on the Chinese mainland; the Government of the Republic of China moved from Nanking to Taipei in 1949, controlling only the Taiwan area after 1949. The official name of the state in the mainland was the "Republic of China". Shortly after the ROC's establishment in 1912, while it was still located on the Chinese mainland, the government used the short form "China" to refer to itself, which derives from zhōng and guó, a term which developed under the Zhou dynasty in reference to its royal demesne, the name was applied to the area around Luoyi during the Eastern Zhou and to China's Central Plain before being used as an occasional synonym for the state during the Qing era; the ROC used alternate names throughout its existence were Republican China or Republican Era, as well as the Beiyang government, the Nationalist government.
A republic was formally established on 1 January 1912 following the Xinhai Revolution, which itself began with the Wuchang Uprising on 10 October 1911 overthrowing the Qing dynasty and ending over two thousand years of imperial rule in China. From its founding until 1949 it was based on mainland China. Central authority waxed and waned in response to warlordism, Japanese invasion, a full-scale civil war, with central authority strongest during the Nanjing Decade, when most of China came under the control of the Kuomintang under an authoritarian one-party military dictatorship. At the end of World War II in 1945, the Empire of Japan surrendered control of Taiwan and its island groups to the Allies, Taiwan was placed under the Republic of China's administrative control; the communist takeover of mainland China in the Chinese Civil War in 1949 left the ruling Kuomintang with control over only Taiwan, Kinmen and other minor islands. With the 1949 loss of mainland China in the civil war, the ROC government retreated to Taiwan and the KMT declared Taipei the provisional capital.
The Communist Party of China took over all of mainland China and founded the People's Republic of China in Beijing. In 1912, after over two thousand years of imperial rule, a republic was established to replace the monarchy; the Qing dynasty that preceded the republic experienced a century of instability throughout the 19th century, suffered from both internal rebellion and foreign imperialism. The ongoing instability led to the outburst of Boxer Rebellion in 1900, whose attacks on foreigners led to the invasion by the Eight Nation Alliance. China signed the Boxer Protocol and paid a large indemnity to the foreign powers: 450 million taels of fine silver. A program of institutional reform proved too late. Only the lack of an alternative regime prolonged its existence until 1912; the establishment of the Chinese Republic developed out of the Wuchang Uprising against the Qing government on 10 October 1911. That date is now celebrated annually as the ROC's national day known as the "Double Ten Day".
On 29 December 1911, Sun Yat-sen was elected president b
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 Roman Empire was the post-Roman Republic period of the ancient Roman civilization. Ruled by emperors, it had large territorial holdings around the Mediterranean Sea in Europe, North Africa, the Middle East, the Caucasus. From the constitutional reforms of Augustus to the military anarchy of the third century, the Empire was a principate ruled from the city of Rome; the Roman Empire was ruled by multiple emperors and divided in a Western Roman Empire, based in Milan and Ravenna, an Eastern Roman Empire, based in Nicomedia and Constantinople. Rome remained the nominal capital of both parts until 476 AD, when Odoacer deposed Romulus Augustus after capturing Ravenna and the Roman Senate sent the imperial regalia to Constantinople; the fall of the Western Roman Empire to barbarian kings, along with the hellenization of the Eastern Roman Empire into the Byzantine Empire, is conventionally used to mark the end of Ancient Rome and the beginning of the Middle Ages. The previous Republic, which had replaced Rome's monarchy in the 6th century BC, became destabilized in a series of civil wars and political conflict.
In the mid-1st century BC Julius Caesar was appointed as perpetual dictator and assassinated in 44 BC. Civil wars and proscriptions continued, culminating in the victory of Octavian, Caesar's adopted son, over Mark Antony and Cleopatra at the Battle of Actium in 31 BC; the following year Octavian conquered Ptolemaic Egypt, ending the Hellenistic period that had begun with the conquests of Alexander the Great of Macedon in the 4th century BC. Octavian's power was unassailable and in 27 BC the Roman Senate formally granted him overarching power and the new title Augustus making him the first emperor; the first two centuries of the Empire were a period of unprecedented stability and prosperity known as the Pax Romana. It reached its greatest territorial expanse during the reign of Trajan. A period of increasing trouble and decline began with the reign of Commodus. In the 3rd century, the Empire underwent a crisis that threatened its existence, but was reunified under Aurelian. In an effort to stabilize the Empire, Diocletian set up two different imperial courts in the Greek East and Latin West.
Christians rose to power in the 4th century following the Edict of Milan in 313 and the Edict of Thessalonica in 380. Shortly after, the Migration Period involving large invasions by Germanic peoples and the Huns of Attila led to the decline of the Western Roman Empire. With the fall of Ravenna to the Germanic Herulians and the deposition of Romulus Augustulus in 476 AD by Odoacer, the Western Roman Empire collapsed and it was formally abolished by emperor Zeno in 480 AD; the Eastern Roman Empire, known in the post-Roman West as the Byzantine Empire, collapsed when Constantinople fell to the Ottoman Turks of Mehmed II in 1453. Due to the Roman Empire's vast extent and long endurance, the institutions and culture of Rome had a profound and lasting influence on the development of language, architecture, philosophy and forms of government in the territory it governed Europe; the Latin language of the Romans evolved into the Romance languages of the medieval and modern world, while Medieval Greek became the language of the Eastern Roman Empire.
Its adoption of Christianity led to the formation of Christendom during the Middle Ages. Greek and Roman art had a profound impact on the late medieval Italian Renaissance, while Rome's republican institutions influenced the political development of republics such as the United States and France; the corpus of Roman law has its descendants in many legal systems of the world today, such as the Napoleonic Code. Rome's architectural tradition served as the basis for Neoclassical architecture. Rome had begun expanding shortly after the founding of the republic in the 6th century BC, though it did not expand outside the Italian peninsula until the 3rd century BC, it was an "empire" long before it had an emperor. The Roman Republic was not a nation-state in the modern sense, but a network of towns left to rule themselves and provinces administered by military commanders, it was ruled, not by annually elected magistrates in conjunction with the senate. For various reasons, the 1st century BC was a time of political and military upheaval, which led to rule by emperors.
The consuls' military power rested in the Roman legal concept of imperium, which means "command". Successful consuls were given the honorary title imperator, this is the origin of the word emperor since this title was always bestowed to the early emperors upon their accession. Rome suffered a long series of internal conflicts and civil wars from the late second century BC onward, while extending its power beyond Italy; this was the period of the Crisis of the Roman Republic. Towards the end of this era, in 44 BC, Julius Caesar was perpetual dictator before being assassinated; the faction of his assassins was driven from Rome and defeated at the Battle of Philippi in 42 BC by an army led by Mark Antony and Caesar's adopted son Octavian. Antony and Octavian's division of the Roman world between themselves did not last and Octavian's forces defeated those of Mark Antony and Cleopatra at the Battle of Actium in 31 BC, ending the Final War of the Roman Republic. In 27 BC the Senate and People of Rome made Octavian princeps ("first citi
The Republic of China calendar is the official calendar of the Republic of China. It is used to number the years for official purposes only in the Taiwan area after 1949, it was used in the Chinese mainland from 1912 until the establishment of the People's Republic of China in 1949. Following the Chinese imperial tradition of using the sovereign's era name and year of reign, official ROC documents use the Republic system of numbering years in which the first year was 1912, the year of the establishment of the Republic of China. Months and days are numbered according to the Gregorian calendar; the Gregorian calendar was adopted by the nascent Republic of China effective 1 January 1912 for official business, but the general populace continued to use the traditional Chinese calendar. The status of the Gregorian calendar was unclear between 1916 and 1921 while China was controlled by several competing warlords each supported by foreign colonial powers. From about 1921 until 1928 warlords continued to fight over northern China, but the Kuomintang or Nationalist government controlled southern China and used the Gregorian calendar.
After the Kuomintang reconstituted the Republic of China on 10 October 1928, the Gregorian calendar was adopted, effective 1 January 1929. The People's Republic of China has continued to use the Gregorian calendar since 1949. Despite the adoption of the Gregorian calendar, the numbering of the years was still an issue; the Chinese imperial tradition was to use the emperor's era year of reign. One alternative to this approach was to use the reign of the half-historical, half-legendary Yellow Emperor in the third millennium BC to number the years. In the early 20th century, some Chinese Republicans began to advocate such a system of continuously numbered years, so that year markings would be independent of the Emperor's regnal name; when Sun Yat-sen became the provisional president of the Republic of China, he sent telegrams to leaders of all provinces and announced the 13th day of 11th Month of the 4609th year of the Yellow Emperor's reign to be the first year of the Republic of China. The original intention of the Minguo calendar was to follow the imperial practice of naming the years according to the number of years the Emperor had reigned, a universally recognizable event in China.
Following the establishment of the Republic, hence the lack of an Emperor, it was decided to use the year of the establishment of the current regime. This reduced the issue of frequent change in the calendar, as no Emperor ruled more than 61 years in Chinese history — the longest being the Kangxi Emperor, who ruled from 1662–1722; as Chinese era names are traditionally two characters long, 民國 is employed as an abbreviation of 中華民國. The first year, 1912, is called 民國元年 and 2010, the "99th year of the Republic" is 民國九十九年, 民國99年, or 99. Based on Chinese National Standard CNS 7648: Data Elements and Interchange Formats—Information Interchange—Representation of Dates and Times, year numbering may use the Gregorian system as well as the ROC era. For example, 3 May 2004 may be written 2004-05-03 or ROC 93-05-03; the ROC era numbering happens to be the same as the numbering used by the Juche calendar of North Korea, because its founder, Kim Il-sung, was born in 1912. The years in Japan's Taishō period coincide with those of the ROC era.
In addition to the ROC's Minguo calendar, Taiwanese continue to use the lunar Chinese calendar for certain functions such as the dates of many holidays, the calculation of people's ages, religious functions. The use of the ROC era system extends beyond official documents. Misinterpretation is more in the cases when the prefix is omitted. There have been legislative proposals by pro-Taiwan Independence political parties, such as the Democratic Progressive Party to abolish the Republican calendar in favor of the Gregorian calendar. To convert any Gregorian calendar year between 1912 and the current year to Minguo calendar, 1912 needs to be subtracted from the year in question 1 added. East Asian age reckoning Public holidays in Taiwan