Year 122 was a common year starting on Wednesday

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 Aviola and Neratius (or, less frequently, year 875 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 122 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

• Emperor Hadrian
  Hadrian
  Hadrian , was Roman Emperor from 117 to 138. He is best known for building Hadrian's Wall, which marked the northern limit of Roman Britain. In Rome, he re-built the Pantheon and constructed the Temple of Venus and Roma. In addition to being emperor, Hadrian was a humanist and was philhellene in...
  
   orders that a 73-mile (117-kilometer) wall be built to mark the northern Roman Empire
  Roman Empire
  The Roman Empire was the post-Republican period of the ancient Roman civilization, characterised by an autocratic form of government and large territorial holdings in Europe and around the Mediterranean....
  
  . Hadrian's Wall
  Hadrian's Wall
  Hadrian's Wall was a defensive fortification in Roman Britain. Begun in AD 122, during the rule of emperor Hadrian, it was the first of two fortifications built across Great Britain, the second being the Antonine Wall, lesser known of the two because its physical remains are less evident today.The...
  
  , as it comes to be known, is intended to keep the Caledonians
  Caledonians
  The Caledonians , or Caledonian Confederacy, is a name given by historians to a group of indigenous peoples of what is now Scotland during the Iron Age and Roman eras. The Romans referred to their territory as Caledonia and initially included them as Britons, but later distinguished as the Picts...
  
  , Picts
  Picts
  The Picts were a group of Late Iron Age and Early Mediaeval people living in what is now eastern and northern Scotland. There is an association with the distribution of brochs, place names beginning 'Pit-', for instance Pitlochry, and Pictish stones. They are recorded from before the Roman conquest...
  
   and other tribes at bay.
• Vindolanda
  Vindolanda
  Vindolanda was a Roman auxiliary fort just south of Hadrian's Wall in northern England. Located near the modern village of Bardon Mill, it guarded the Stanegate, the Roman road from the River Tyne to the Solway Firth...
  
   a Roman auxiliary
  Auxiliaries (Roman military)
  Auxiliaries formed the standing non-citizen corps of the Roman army of the Principate , alongside the citizen legions...
  
   fort (castrum
  Castra
  The Latin word castra, with its singular castrum, was used by the ancient Romans to mean buildings or plots of land reserved to or constructed for use as a military defensive position. The word appears in both Oscan and Umbrian as well as in Latin. It may have descended from Indo-European to Italic...
  
  ) in northern England
  England
  England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...
  
   is garrison
  Garrison
  Garrison is the collective term for a body of troops stationed in a particular location, originally to guard it, but now often simply using it as a home base....
  
  ed by cohort VIIII
  Cohort (military unit)
  A cohort was the basic tactical unit of a Roman legion following the reforms of Gaius Marius in 107 BC.-Legionary cohort:...
  
   Batavorum.
• September 13 – The building of Hadrian's Wall begins.
• Hadrian gives up the territories conquered in Scotland
  Scotland
  Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...
  
  .

Asia

• Change of era name from Jianguang (2nd year) to Yanguang of the Chinese Eastern Han Dynasty
  Han Dynasty
  The Han Dynasty was the second imperial dynasty of China, preceded by the Qin Dynasty and succeeded by the Three Kingdoms . It was founded by the rebel leader Liu Bang, known posthumously as Emperor Gaozu of Han. It was briefly interrupted by the Xin Dynasty of the former regent Wang Mang...
  
  .