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 mathematicians and astronomers such as Sosigenes of Alexandr ...

. 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 politic ...

of Pollio and Vetus (or, less frequently, year 776 '' Ab urbe condita''). The denomination AD 23 for this year has been used since the early medieval period, 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 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 Roman or Romans most often refers to: *Rome, the capital city of Italy * Ancient Rome, Roman civilization from 8th century BC to 5th century AD *Roman people, the people of ancient Rome *''Epistle to the Romans'', shortened to ''Romans'', a lette ...

and Greeks 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' 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 and Tiberius, after the death of Drusus.

China

* Liu Xuan, a descendant of the Han Dynasty 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 Pin ...

, proclaims himself emperor against Wang Mang. * 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 voc ...

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 Events Pre-1600 * 105 BC – Cimbrian War: Defeat at the Battle of Arausio accelerates the Marian reforms of the Roman army of the mid-Republic. * 69 BC – Third Mithridatic War: The military of the Roman Republic subdue Armenia. *A ...

— 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 __NOTOC__ AD 79 ( LXXIX) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Titus and Vespasianus (or, less frequently, year 832 ''Ab ur ...

)

Deaths

September 14 Events Pre-1600 *AD 81 – Domitian becomes Emperor of the Roman Empire upon the death of his brother Titus. * 629 – Emperor Heraclius enters Constantinople in triumph after his victory over the Persian Empire. * 786 – "Night ...

–

, son of Emperor Tiberius (b. 14 BC) *

– Wang Mang, 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) an ...

) * Juba II, king of Mauretania (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 Servius Cornelius Lentulus Maluginensis (died AD 23) was a Roman statesman, who flourished during the reigns of Augustus and Tiberius. He was '' flamen dialis'', and consul ''suffectus'' in AD 10. Descent Descended from the patrician Cornelia g ...

, 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 __NOTOC__ Year 8 BC was either a common year starting on Friday or Saturday or a leap year starting on Thursday (link will display the full calendar) of the Julian calendar (the sources differ, see leap year error for further information) and a ...

)

References

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