21
Encyclopedia
Year 21 was a common year starting on Wednesday
(link will display the full calendar) of the Julian calendar
. At the time, it was known as the Year of the Consulship of Augustus and Caesar (or, less frequently, 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
became the prevalent method in Europe for naming years.
Common year starting on Wednesday
This is the calendar for any common year starting on Wednesday, January 1 . Examples: Gregorian years 1986, 1997, 2003, 2014 and 2025or Julian year 1903 ....
(link will display the full calendar) of the Julian calendar
Julian calendar
The Julian calendar began in 45 BC as a reform of the Roman calendar by Julius Caesar. It was chosen after consultation with the astronomer Sosigenes of Alexandria and was probably designed to approximate the tropical year .The Julian calendar has a regular year of 365 days divided into 12 months...
. At the time, it was known as the Year of the Consulship of Augustus and Caesar (or, less frequently, year 774 Ab urbe condita
Ab urbe condita
Ab urbe condita is Latin for "from the founding of the City ", traditionally set in 753 BC. AUC is a year-numbering system used by some ancient Roman historians to identify particular Roman years...
). The denomination 21 for this year has been used since the early medieval period, when the Anno Domini
Anno Domini
and Before Christ are designations used to label or number years used with the Julian and Gregorian calendars....
calendar era
Calendar era
A calendar era is the year numbering system used by a calendar. For example, the Gregorian calendar numbers its years in the Western Christian era . The instant, date, or year from which time is marked is called the epoch of the era...
became the prevalent method in Europe for naming years.
Roman Empire
- Revolt of the AeduiAeduiAedui, Haedui or Hedui , were a Gallic people of Gallia Lugdunensis, who inhabited the country between the Arar and Liger , in today's France. Their territory thus included the greater part of the modern departments of Saône-et-Loire, Côte-d'Or and Nièvre.-Geography:The country of the Aedui is...
under Julius FlorusJulius FlorusJulius Florus was a poet, orator, and jurist of the Augustan age.His name has been immortalized by Horace, who dedicated to him two of his Epistles , from which it would appear that he composed lyrics of a light, agreeable kind...
and Julius Sacrovir, suppressed by Gaius SiliusGaius SiliusGaius Silius was the name of two consuls of the Roman Empire, during the 1st century. The elder was a consul and commander in the Roman Army during the reign of Emperors Augustus and Tiberius and the younger a consul in the reign of Emperor Claudius....
. - Emperor TiberiusTiberiusTiberius , was Roman Emperor from 14 AD to 37 AD. Tiberius was by birth a Claudian, son of Tiberius Claudius Nero and Livia Drusilla. His mother divorced Nero and married Augustus in 39 BC, making him a step-son of Octavian...
is a Roman Consul for the fourth time. - The Romans create a buffer stateBuffer stateA buffer state is a country lying between two rival or potentially hostile greater powers, which by its sheer existence is thought to prevent conflict between them. Buffer states, when authentically independent, typically pursue a neutralist foreign policy, which distinguishes them from satellite...
in the territory of the QuadiQuadiThe Quadi were a smaller Germanic tribe, about which little is definitively known. We only know the Germanic tribe the Romans called the 'Quadi' through reports of the Romans themselves...
in southern SlovakiaSlovakiaThe Slovak Republic is a landlocked state in Central Europe. It has a population of over five million and an area of about . Slovakia is bordered by the Czech Republic and Austria to the west, Poland to the north, Ukraine to the east and Hungary to the south...
. - BarracksBarracksBarracks are specialised buildings for permanent military accommodation; the word may apply to separate housing blocks or to complete complexes. Their main object is to separate soldiers from the civilian population and reinforce discipline, training and esprit de corps. They were sometimes called...
are constructed for the Praetorian GuardPraetorian GuardThe Praetorian Guard was a force of bodyguards used by Roman Emperors. The title was already used during the Roman Republic for the guards of Roman generals, at least since the rise to prominence of the Scipio family around 275 BC...
on the Quirinal.
Asia
- King Daeso of DongbuyeoDaesoKing Daeso was the third ruler of the ancient Korean kingdom of Dongbuyeo.- Background :King Daeso was the first son of the previous King Geumwa, and the grandson of Dongbuyeo’s founder and first ruler, Hae Buru....
is killed in battle against the armies of Goguryeo, led by its third ruler, King DaemusinDaemusin of GoguryeoKing Daemusin of Goguryeo was the third ruler of Goguryeo, the northernmost of the Three Kingdoms of Korea. King Daemusin led early Goguryeo through a period of massive territorial expansion, conquering several smaller nations and the powerful kingdom of Dongbuyeo.- Background :Prince Muhyul was...
.
Arts and sciences
- The manufacture of penPenA pen is a device used to apply ink to a surface, usually paper, for writing or drawing. Historically, reed pens, quill pens, and dip pens were used, with a nib of some sort to be dipped in the ink. Ruling pens allow precise adjustment of line width, and still find a few specialized uses, but...
s and metal writing tools begins in Rome.
Deaths
- Publius Sulpicius Quirinius, Roman governor of SyriaSyriaSyria , officially the Syrian Arab Republic , is a country in Western Asia, bordering Lebanon and the Mediterranean Sea to the West, Turkey to the north, Iraq to the east, Jordan to the south, and Israel to the southwest....
- Marcus Valerius Messalla BarbatusMarcus Valerius Messalla BarbatusMarcus Valerius Messalla Barbatus was a consul of ancient Rome. He was the father of the Roman Empress Valeria Messalina, great-nephew of the Emperor Augustus, and father-in-law to the Emperor Claudius....
, Roman Consul (or 2020Year 20 was a leap year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Messala and Cotta...
) - ArminiusArminiusArminius , also known as Armin or Hermann was a chieftain of the Germanic Cherusci who defeated a Roman army in the Battle of the Teutoburg Forest...
, Germanic leader who defeated three Roman legions at the Battle of the Teutoburg ForestBattle of the Teutoburg ForestThe Battle of the Teutoburg Forest took place in 9 CE, when an alliance of Germanic tribes led by Arminius of the Cherusci ambushed and decisively destroyed three Roman legions, along with their auxiliaries, led by Publius Quinctilius Varus.Despite numerous successful campaigns and raids by the... - Empress WangEmpress Wang (Xin Dynasty)Empress Wang , formally Empress Xiaomu was an empress during Xin Dynasty....