21

Year 21 (XXI) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar.

Events

By place

Roman Empire

Revolt of the Aedui under Julius Florus and Julius Sacrovir, suppressed by Gaius Silius.
Tiberius is a Roman Consul for the fourth time.
Beginning of the revolt in Africa led by Tacfarinas.
The Romans create a buffer state in the territory of the Quadi in southern Slovakia.
A barracks is 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.

By topic

Arts and sciences

The manufacture of pens and metal writing tools begins in Rome.

Deaths

Publius Sulpicius Quirinius, Roman governor of Syria
Marcus Valerius Messalla Barbatus, Roman Consul (or 20)
Arminius, Germanic leader who killed three Roman legions at the Battle of the Teutoburg Forest
Empress Wang

Translation

The word "21" occurs as such in the following languages: English, Afrikaans, Aragonese, Asturian, Azeri, Belarusian, Belarusian (Taraškievica), Bosnian, Breton, Bulgarian, Catalan, Chuvash, Czech, Corsican, Welsh, Danish, German, Estonian, Greek, Spanish, Esperanto, Basque, French, West Frisian, Scottish Gaelic, Galician, Croatian, Ido, Indonesian, Interlingua, Icelandic, Italian, Hebrew, Javanese, Georgian, Swahili, Latin, Latvian, Luxembourgish, Lombard, Hungarian, Macedonian, Malay, Nahuatl, Dutch, Neapolitan, Norwegian (Bokmål), Norwegian (Nynorsk), Occitan, Uzbek, Low Saxon, Polish, Portuguese, Tahitian, Romanian, Sakha, Albanian, Simple English, Slovak, Slovenian, Sranan, Serbian, Sundanese, Finnish, Swedish, Tatar, Turkish, Turkmen, Ukrainian, Venetian, Volapük, Waray-Waray, Yoruba.

Translation(s) in other languages: Alemannic: 20er#21, Amharic: 21 እ.ኤ.አ., Arabic: ملحق:21, Bengali: ২১, Bihari: २१, Persian: ۲۱ (میلادی), Gan: 21年, Korean: 21년, Bishnupriya Manipuri: মারি ২১, Haitian: 21 (almanak jilyen), Lithuanian: 21 m., Marathi: इ.स. २१, Newar / Nepal Bhasa: २१, Japanese: 21年, Oriya: ୨୧, Pali: २१, Ripuarian: Joohr 21, Russian: 21 год, Sanskrit: २१, Thai: พ.ศ. 564, Urdu: 21ء, Cantonese: 21年, Chinese: 21年.