AD 23 ( XXIII) was a common year starting on Friday (link will display the full calendar) of the

Julian calendar The Julian calendar, proposed by Roman consul Julius Caesar in 46 BC, was a reform of the Roman calendar. It took effect on , by edict. It was designed with the aid of Greek mathematics, Greek mathematicians and Ancient Greek astronomy, as ...

. At the time, it was known as the Year of the

Consulship A consul held the highest elected political office of the Roman Republic ( to 27 BC), and ancient Romans considered the consulship the second-highest level of the '' cursus honorum'' (an ascending sequence of public offices to which polit ...

of Pollio and Vetus (or, less frequently, year 776 ''

Ab urbe condita ''Ab urbe condita'' ( 'from the founding of the City'), or ''anno urbis conditae'' (; 'in the year since the city's founding'), abbreviated as AUC or AVC, expresses a date in years since 753 BC, the traditional founding of Rome. It is an ex ...

''). The denomination AD 23 for this year has been used since the early

medieval period In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire an ...

, when the

Anno Domini The terms (AD) and before Christ (BC) are used to label or number years in the Julian and Gregorian calendars. The term is Medieval Latin and means 'in the year of the Lord', but is often presented using "our Lord" instead of "the Lord", ...

calendar era A calendar era is the period of time elapsed since one '' epoch'' of a calendar and, if it exists, before the next one. For example, it is the year as per the Gregorian calendar, which numbers its years in the Western Christian era (the Copt ...

became the prevalent method in Europe for naming years.

Events

By place

Roman Empire

* Greek

geographer A geographer is a physical scientist, social scientist or humanist whose area of study is geography, the study of Earth's natural environment and human society, including how society and nature interacts. The Greek prefix "geo" means "earth" a ...

Strabo publishes ''Geography'', a work covering the world known to the Romans and

Greeks The Greeks or Hellenes (; el, Έλληνες, ''Éllines'' ) are an ethnic group and nation indigenous to the Eastern Mediterranean and the Black Sea regions, namely Greece, Greek Cypriots, Cyprus, Greeks in Albania, Albania, Greeks in Italy, ...

at the time of Emperor

Augustus Caesar Augustus (born Gaius Octavius; 23 September 63 BC – 19 August AD 14), also known as Octavian, was the first Roman emperor; he reigned from 27 BC until his death in AD 14. He is known for being the founder of the Roman Pr ...

– it is the only such book to survive from the ancient world. * Emperor

Tiberius Tiberius Julius Caesar Augustus (; 16 November 42 BC – 16 March AD 37) was the second Roman emperor. He reigned from AD 14 until 37, succeeding his stepfather, the first Roman emperor Augustus. Tiberius was born in Rome in 42 BC. His father ...

' son

Drusus Julius Caesar Drusus Julius Caesar (14 BC – 14 September AD 23), was the son of Emperor Tiberius, and heir to the Roman Empire following the death of his adoptive brother Germanicus in AD 19. He was born at Rome to a prominent branch of the ''gens Claud ...

dies. From that point forward, he seems to lose interest in the Empire and occupies himself with the pursuit of pleasure. * Lucius Aelius Sejanus begins to dominate the

Roman Senate The Roman Senate ( la, Senātus Rōmānus) was a governing and advisory assembly in ancient Rome. It was one of the most enduring institutions in Roman history, being established in the first days of the city of Rome (traditionally founded in ...

and Tiberius, after the death of Drusus.

China

* Liu Xuan, a descendant of the

Han Dynasty The Han dynasty (, ; ) was an Dynasties in Chinese history, imperial dynasty of China (202 BC – 9 AD, 25–220 AD), established by Emperor Gaozu of Han, Liu Bang (Emperor Gao) and ruled by the House of Liu. The dynasty was preceded by th ...

royal family and leader of insurgents against the

Xin Dynasty The Xin dynasty (; ), also known as Xin Mang () in Chinese historiography, was a short-lived Chinese imperial dynasty which lasted from 9 to 23 AD, established by the Han dynasty consort kin Wang Mang, who usurped the throne of the Emperor Ping ...

, proclaims himself emperor against

Wang Mang Wang Mang () (c. 45 – 6 October 23 CE), courtesy name Jujun (), was the founder and the only emperor of the short-lived Chinese Xin dynasty. He was originally an official and consort kin of the Han dynasty and later seized the thro ...

. * July – After being under siege for two months, about 19,000 insurgents under

Liu Xiu The asterisk ( ), from Late Latin , from Ancient Greek , ''asteriskos'', "little star", is a typographical symbol. It is so called because it resembles a conventional image of a heraldic star. Computer scientists and mathematicians often vo ...

defeat 450,000 of Wang Mang's troops in the

Battle of Kunyang The Battle of Kunyang () was fought during June and July in 23 AD, between the Lulin and Xin forces. The Lulin forces were led by Liu Xiu, who later became Emperor Guangwu of Han, while the far more numerous Xin were led by Wang Yi and Wang Xun ...

, ushering in the fall of Wang Mang's Xin Dynasty and restoration of the Han Dynasty. * October 6 — Emperor Liu Xuan's forces kill Wang Mang at the end of a three-day siege.

Births

Pliny the Elder Gaius Plinius Secundus (AD 23/2479), called Pliny the Elder (), was a Roman author, naturalist and natural philosopher, and naval and army commander of the early Roman Empire, and a friend of the emperor Vespasian. He wrote the encyclopedic ...

, Roman scientist and writer (d. 79 AD)

Deaths

* September 14 –

, son of Emperor

(b.

14 BC __NOTOC__ Year 14 BC was either a common year starting on Thursday or Friday or a leap year starting on Wednesday, Thursday or Friday (link will display the full calendar) of the Julian calendar (the sources differ, see leap year error for ...

) * October 6 –

, Chinese emperor of the

(b. c.

45 BC __NOTOC__ Year 45 BC was either a common year starting on Thursday, Friday or Saturday or a leap year starting on Friday or Saturday (link will display the full calendar) (the sources differ, see leap year error for further information) and th ...

) *

Juba II Juba II or Juba of Mauretania (Latin: ''Gaius Iulius Iuba''; grc, Ἰóβας, Ἰóβα or ;Roller, Duane W. (2003) ''The World of Juba II and Kleopatra Selene'' "Routledge (UK)". pp. 1–3. . c. 48 BC – AD 23) was the son of Juba I and clien ...

, king of

Mauretania Mauretania (; ) is the Latin name for a region in the ancient Maghreb. It stretched from central present-day Algeria westwards to the Atlantic, covering northern present-day Morocco, and southward to the Atlas Mountains. Its native inhabitants, ...

(b. c.

50 BC __NOTOC__ Year 50 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Paullus and Marcellus (or, less frequently, year 704 ''Ab urbe condita''). The denomination 50 BC for this year has bee ...

) * Liu Xin, Chinese astronomer, mathematician and politician (b. c.

) * Liu Yan, Chinese general and politician * Servius Cornelius Lentulus Maluginensis, Roman statesman *

Wang Wang may refer to: Names * Wang (surname) (王), a common Chinese surname * Wāng (汪), a less common Chinese surname * Titles in Chinese nobility * A title in Korean nobility * A title in Mongolian nobility Places * Wang River in Thai ...

, Chinese empress of the Xin Dynasty (b. 8 BC)

References

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