Roman Empire
Servius Sulpicius Galba is a Roman praetor.
Emperor Tiberius is forced to order an investigation and a public trial in the Roman Senate, for the murder of Germanicus. Fearing he will be found guilty, Gnaeus Calpurnius Piso commits suicide.
Asia
First year of Dihuang era of the Chinese Xin Dynasty.
Roman Empire
Revolt of the Aedui under Julius Florus and Julius Sacrovir, suppressed by Gaius Silius.
Emperor Tiberius is a Roman Consul for the fourth time.
The Romans create a buffer state in the territory of the Quadi in southern Slovakia.
Barracks are constructed for the Praetorian Guard on the Quirinal.
Asia
King Daeso of Dongbuyeo is killed in battle against the armies of Goguryeo, led by its third ruler, King Daemusin.
Arts and sciences
The manufacture of pens and metal writing tools begins in Rome.
Roman Empire
It is the ninth year of the emperor Tiberius.
The consuls are Decimus Haterius Agrippa and Gaius Sulpicius Galba.
Marcus Cocceius Nerva and Gaius Vibius Rufinus are consuls Ex Kal. Jul.
Drusus Julius Caesar receives the tribunicia potestas (tribunician power).
Roman law replaces Celtic customs in Gaul.
Asia
Beginning of Later Han Dynasty in China.
Roman Empire
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.
Asia
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 two 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.
Roman Empire
The Roman war against Numidia and Mauretania ends with their annexation.
Servius Cornelius Cethegus and Lucius Visellius Varro become consuls.
Charmides becomes Archon of Athens.
Tacfarinas' revolt in Africa is repressed.
Asia
King Yuri ascends to the Silla (Korea) throne.
Africa
End of the Masinissa line of the rulers of Carthage.
Roman Empire
Emperor Tiberius settles a dispute between Messenia and Sparta over the Ager Dentheliales on Mount Taygetus, awarding the land to Messenia.
Lucius Aelius Sejanus unsuccessfully attempts to marry Livilla.
Cossus Cornelius Lentulus and Marcus Asinius Agrippa become consuls.
Asia
August 5 – The Han dynasty is restored in China as Liu Xiu proclaims himself Emperor Guangwu of Han, starting the Jianwu era (until AD 56).
November 27 – Luoyang becomes the capital of the Houhan or Eastern Han Dynasty.
Arts and sciences
Pomponius Mela formalizes the climatic zone system.
Roman Empire
Pontius Pilate is appointed as prefect of Judea.
Emperor Tiberius retires to Capri, leaving the Praetorian Guard under Lucius Aelius Sejanus in charge of the Roman Empire and the city of Rome.
Romans crush an uprising of Thracian tribesmen.
Roman Empire
Lucius Calpurnius Piso and Marcus Licinius Crassus Frugi become Roman consuls.
Fire in Rome.
A poorly built amphitheatre in Fidenae collapses, killing 20,000 of the 50,000 spectators.
Apricots are brought to Rome from Asia.
An Arc of Triumph is erected in Rimini, in honor of Augustus.
Germania
Roman legions in Germania are transported by fleet to the fortress of Flevum on the Rhine, to operate against the rebellious Frisians.
The Frisians negotiate a treaty with the Roman Empire at the River Rhine, avoiding conquest.
Asia
King Daru of Baekje succeeds to the throne of Baekje in the Korean peninsula.
According to the Gospel of Luke (Luke 3:1-2), the ministries of John the Baptist and Jesus began at the earliest in this year, and more likely in AD 29.
Roman Empire
The Romans capture Serdica (modern Sofia), named after the Celtic tribe the Serdi.
Agrippina the Elder is exiled to the island of Pandataria, and her sons (except Caligula) are imprisoned by Lucius Aelius Sejanus.
Religion
According to the Gospel of Luke (Luke 3:1-2), the ministries of John the Baptist and Jesus probably began in this year. Jesus baptized by John the Baptist.
Jesus executed according to Roman Catholic tradition.
Tiberius, Roman Emperor (AD 14–37)
AD 22
Valeria Messalina, third wife of Roman Emperor Claudius (d. 48 AD)
Amit Shankar Choudhary, son of the late Tushar Shankar Choudhary of Jamshedpur, India
AD 23
Pliny the Elder, Roman scientist and writer (d. 79 AD)
AD 25
Gaius Julius Civilis, German chieftain
AD 27
Agrippa II of Judea
Petronius, Roman writer (d. AD 66)
Wang Chong (Wang-Tch'oung), Chinese philosopher (d. AD 97)
AD 28
Emperor Ming of Han (d. AD 75)
AD 20
Gnaeus Calpurnius Piso, Roman statesman and governor of Syria (b. 44 BC)
Vipsania Agrippina, wife of Gaius Asinius Gallus and former wife of Tiberius (b. 36 BC)
AD 21
Publius Sulpicius Quirinius, Roman governor of Syria (b. c. 51 BC)
Marcus Valerius Messalla Barbatus, Roman Consul (or AD 20) (b. 11 BC)
Arminius, Germanic leader who defeated three Roman legions at the Battle of the Teutoburg Forest (b. 18/17 BC)
Empress Wang
King Daeso of Dongbuyeo (b. 60 BC)
AD 22
Junia Tertia, wife of Gaius Cassius Longinus and sister of Marcus Junius Brutus
AD 23
September 14 – Drusus Julius Caesar, son of the Emperor Tiberius, poisoned (b. 13 BC)
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 (b. c. 50 BC)
Liu Yan, Chinese general
Empress Wang (b. 8 BC)
Juba II, King of Mauretania (b. c. 50 BC)
AD 24
Strabo, Greek geographer (b. 64/63 BC)
Namhae, king of Silla
AD 25
Aulus Cremutius Cordus, Roman historian
Emperor Gengshi of Han
Ruzi Ying (b. AD 5)
AD 26
Marcus Asinius Agrippa, Roman consul
Claudia Pulchra, second cousin and close friend to Agrippina the Elder (b. 14 BC)
AD 27
Liu Penzi, captive "Emperor" of China (b. AD 10)
AD 28
King Onjo of Baekje
Jesus of Nazareth, born in Bethlehem. AD 29
Julia the Younger (estimated date), Roman noblewoman
Livia, wife of Caesar Augustus and mother of then-current Roman Emperor Tiberius (b. 58 BC)
