21 by pc10201


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   This article is about the year 21. For the number, see 21 (number). For other uses, see 21 (disambiguation).
Year 21 (XXI) was a common year starting on Wednesday (link will display
                                                                               Millennium:                 1st millennium
the full calendar) of the Julian calendar. At the time, it was known as the
                                                                                Centuries:   1st century BC – 1st century – 2nd century
Year of the Consulship of Augustus and Caesar (or, less frequently,
                                                                                Decades :        0s BC 0s 10s – 20s – 30s 40s 50s
year 774 Ab urbe condita). The denomination 21 for this year has been
used since the early medieval period, when the Anno Domini calendar era            Years:            18 19 20 – 21 – 22 23 24

became the prevalent method in Europe for naming years.
                                                                                                                          21 by topic

Events                                                                                                                          Politics

                                                                                                                         State leaders –
                                                                                                                        Sovereign states
By place
                                                                                                                         Birth and death
Roman Empire
                                                                                                                        Births – Deaths
   Revolt of the Aedui under Julius Florus and Julius Sacrovir, suppressed by Gaius Silius.
                                                                                                                        Establishment and
   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.                                     categories
   Barracks are constructed for the Praetorian Guard on the Quirinal.                                                  Establishments –
                                                                                                                            V   · T·   E   ·
   King Daeso of Dongbuyeo is killed in battle against the armies of Goguryeo, led by its third ruler, King
   Daemusin.                                                                                 21 in other calendars
                                                                                      Gregorian calendar         21
By topic                                                                                                         XXI

Arts and sciences                                                                     Ab urbe condita            774
                                                                                      Armenian calendar          N/A
   The manufacture of pens and metal writing tools begins in Rome.
                                                                                      Assyrian calendar          4771
                                                                                      Bahá'í calendar            -1823–-1822
                                                                                      Bengali calendar           -572
                                                                                      Berber calendar            971
                                                                                      English Regnal year        N/A
                                                                                      Buddhist calendar          565
Deaths                                                                                Burmese calendar           -617
                                                                                      Byzantine calendar         5529–5530
   Publius Sulpicius Quirinius, Roman governor of Syria
                                                                                      Chinese calendar           庚辰年十二月廿九日
   Marcus Valerius Messalla Barbatus, Roman Consul (or 20)
   Arminius, Germanic leader who defeated three Roman legions at the Battle of                                          — to —
   the Teutoburg Forest                                                                                          辛巳年十二月初九日

   Empress Wang                                                                                                  (2658/2718-12-9)
                                                                                      Coptic calendar            -263–-262
References                                                                            Ethiopian calendar         13–14
                                                                                      Hebrew calendar            3781–3782
                                                                                      Hindu calendars
via 21                                                                                 - Vikram Samvat           77–78
                                                                                       - Shaka Samvat            N/A
                                                                                       - Kali Yuga               3122–3123
                                                                                      Holocene calendar          10021
Iranian calendar           601 BP – 600 BP
Islamic calendar           619 BH – 618 BH
Japanese calendar
Julian calendar            21      XXI

Korean calendar            2354
Minguo calendar            1891 before ROC
                           民前1891 年

Thai solar calendar        564
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