23

This article is about the year AD 23. For other uses, see 23 (number), 23 Enigma, or 23 (disambiguation).

Millennium:	1st millennium
Centuries:	1st century BC – 1st century – 2nd century
Decades:	0s BC 0s 10s – 20s – 30s 40s 50s
Years:	20 21 22 – 23 – 24 25 26

23 by topic
Politics
State leaders – Sovereign states
Birth and death categories
Births – Deaths
Establishment and disestablishment categories
Establishments – Disestablishments

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

Events

Greek geographer Strabo publishes Geography, a work covering the world known to the Romans and Greeks at the time of Emperor Augustus – it is the only such book to survive from the ancient world.
Emperor Tiberius' son Julius Caesar Drusus 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.
Gaius Asinius Pollio and Gaius Antistius Vetus become consuls.

Liu Xuan, a descendant of the Han Dynasty royal family and leader of insurgents against the Xin Dynasty, proclaims himself emperor against Wang Mang.
July—After being under siege for 2 months, about 19,000 insurgents under Liu Xiu defeat 450,000 of Wang Mang's troops in the Battle of Kunyang, ushering in the fall of Wang Mang and restoration of the Han Dynasty in China.

September 14—Drusus Julius Caesar, son of the Emperor Tiberius, poisoned
October 6—Wang Mang, "usurper" of the throne of the Han Dynasty and Emperor of the Xin Dynasty (b. 45 BC)
Liu Xin, Chinese astronomer
Liu Yan, Chinese general
Empress Wang (b. 8 BC)
Juba II, King of Mauretania