|Centuries:||2nd century – 3rd century – 4th century|
|Decades:||170s 180s 190s – 200s – 210s 220s 230s|
|Years:||199 200 201 – 202 – 203 204 205|
|202 by topic|
|State leaders – Sovereign states|
|Birth and death categories|
|Births – Deaths|
|Establishment and disestablishment categories|
|Establishments – Disestablishments|
|Ab urbe condita||955|
|Chinese calendar||辛巳年 (Metal Snake)
2898 or 2838
— to —
壬午年 (Water Horse)
2899 or 2839
|Coptic calendar||−82 – −81|
|- Vikram Samvat||258–259|
|- Shaka Samvat||124–125|
|- Kali Yuga||3303–3304|
|Iranian calendar||420 BP – 419 BP|
|Islamic calendar||433 BH – 432 BH|
|Minguo calendar||1710 before ROC
|Seleucid era||513/514 AG|
|Thai solar calendar||744–745|
Year 202 (CCII) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Severus and Antoninus (or, less frequently, year 955 Ab urbe condita). The denomination 202 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.
- Emperor Septimius Severus returns to Rome after a five year absence. Festivals are held to celebrate his six year reign. Severus undertakes changes in the imperial government, giving the Roman army a dominant role, raising pay in the legions and permitting legionaries to marry in order to secure their loyalty.
- Rome is a city of about 1.5 million citizens, its people housed mostly in 46,600 insulae or apartment blocks, each three to eight stories high, flimsily made of wood, brick or rubble.
- Some 400,000 slaves perform the menial work of Rome, with middle-class citizens often owning eight; the rich from 500 to 1,000; an emperor as many as 20,000. Free urban workers enjoy 17 to 18 hours of leisure each day, with free admission to baths, sport events and gladiatorial games.
- Severus launches a campaign in Africa, Legio III Augusta under Quintus Anicius Faustus fights a guerrilla war against the Garamantes along the Limes Tripolitanus. They capture several settlements such as Cydamus, Gholaia and their capital Garama, 600 km south of Lepcis Magna. The province of Numidia is enlarged: the Romans annexed Castellum Dimmidi, Gemellae and Vescera.
- An edict bans conversions to Christianity and all Christian propaganda.
- A Roman law bans female gladiators.
- The Pantheon is restored.
- Rome establishes medical licenses, awarded only to trained physicians who have passed examinations. Medical societies and civic hospitals are set up, and laws are passed to govern the behavior of medical students. They are prohibited from visiting brothels.
- In order to avoid Septimus Severus' persecution of Christians, Clement of Alexandria seeks refuge with Alexander in Cappadocia.
- Irenaeus, Bishop of Lyon (b. 130 AD)
- Lady Wu, wife of Sun Jian, mother of Sun Ce, Sun Quan and Lady Sun
- June 28 - Yuan Shao, Chinese warlord
- Pang Ji, minister under Yuan Shao
- Guo Yuan, general under Yuan Shao