Year 51 was a common year starting on Friday (link will display the full calendar) of the Julian calendar.

Events

By place

Roman Empire

• Claudius and Vespasian are Roman Consuls.
• Burrus, praetorian prefect (51–62), is charged by Seneca with the education of Nero.
• In Britain, governor Publius Ostorius Scapula defeats Caratacus and the Silures in the territory of the Ordovices in central Wales. Caratacus seeks sanctuary with Cartimandua, queen of the Brigantes in northern England, but she is a Roman ally and hands him over to Ostorius. Despite the defeat, the Silures continue to fight.
• The captured Caratacus is exhibited in chains in Claudius' triumph in Rome, and his dignified demeanour persuades the emperor to spare his life and allow his family to live free in Rome.

By topic

Religion

• Paul of Tarsus begins his second mission (approximate date).
• The New Testament book 1 Thessalonians is written (possible date).
• In the Epistle to the Galatians, Paul supports the separation of Christianity and Judaism.

Births

• October 24 — Roman emperor Domitian (d. 96)

Deaths

• af:51

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