__NOTOC__ Year 255 ( CCLV) was a

common year starting on Monday A common year starting on Monday is any non-leap year (i.e., a year with 365 days) that begins on Monday, 1 January, and ends on Monday, 31 December. Its dominical letter hence is G. The most recent year of such kind was 2018, and the next one ...

of the

Julian calendar The Julian calendar is a solar calendar of 365 days in every year with an additional leap day every fourth year (without exception). The Julian calendar is still used as a religious calendar in parts of the Eastern Orthodox Church and in parts ...

. At the time, it was known in Rome as the Year of the Consulship of Valerianus and Gallienus (or, less frequently, year 1008 ''

Ab urbe condita ''Ab urbe condita'' (; 'from the founding of Rome, founding of the City'), or (; 'in the year since the city's founding'), abbreviated as AUC or AVC, expresses a date in years since 753 BC, 753 BC, the traditional founding of Rome. It is ...

''). The denomination 255 for this year has been used since the early medieval period, when the

Anno Domini The terms (AD) and before Christ (BC) are used when designating years in the Gregorian calendar, Gregorian and Julian calendar, Julian calendars. The term is Medieval Latin and means "in the year of the Lord" but is often presented using "o ...

calendar era A calendar era is the period of time elapsed since one '' epoch'' of a calendar and, if it exists, before the next one. For example, the current year is numbered in the Gregorian calendar, which numbers its years in the Western Christian era ...

became the prevalent method in Europe for naming years.

Events

By place

China

Sima Shi Sima Shi () (208 – 23 March 255), courtesy name Ziyuan, was a military general and regent of Cao Wei during the Three Kingdoms period of China. In February 249, he assisted his father Sima Yi in overthrowing the emperor Cao Fang's regent Cao S ...

quells Guanqiu Jian and Wen Qin's

rebellion Rebellion is an uprising that resists and is organized against one's government. A rebel is a person who engages in a rebellion. A rebel group is a consciously coordinated group that seeks to gain political control over an entire state or a ...

. *

March 23 Events Pre-1600 * 1400 – The Trần dynasty of Vietnam is deposed, after one hundred and seventy-five years of rule, by Hồ Quý Ly, a court official. * 1540 – Waltham Abbey is surrendered to King Henry VIII of England; the las ...

– Sima Shi passes away. *

Sima Zhao Sima Zhao () (; 211 – 6 September 265), courtesy name Zishang (子上), was a Chinese military general, politician, and regent of the state of Cao Wei during the Three Kingdoms period of China. Sima Zhao capably maintained control of Wei, whi ...

, Sima Shi's younger brother, inherits his brother's authority.

By topic

Science

* Ma Jun, Chinese mechanical engineer from

Cao Wei Wei () was one of the major Dynasties in Chinese history, dynastic states in China during the Three Kingdoms period. The state was established in 220 by Cao Pi based upon the foundations laid by his father Cao Cao during the end of the Han dy ...

, invents the

south-pointing chariot The south-pointing chariot (or carriage) was an ancient Chinese two-wheeled vehicle that carried a movable pointer to indicate the south, no matter how the chariot turned. Usually, the pointer took the form of a doll or figure with an outstretch ...

, a path-finding directional

compass A compass is a device that shows the cardinal directions used for navigation and geographic orientation. It commonly consists of a magnetized needle or other element, such as a compass card or compass rose, which can pivot to align itself with No ...

vehicle that uses a differential gear, not magnetics.

Births

January 6 Events Pre-1600 * 1066 – Following the death of Edward the Confessor on the previous day, the Witan meets to confirm Harold Godwinson as the new King of England; Harold is crowned the same day, sparking a succession crisis that will ...

– Marcellus I, bishop of

Rome Rome (Italian language, Italian and , ) is the capital city and most populated (municipality) of Italy. It is also the administrative centre of the Lazio Regions of Italy, region and of the Metropolitan City of Rome. A special named with 2, ...

(d.

309 __NOTOC__ Year 309 ( CCCIX) was a common year starting on Saturday of the Julian calendar. In the Roman Empire, it was known as the Year of the Consulship of Licinianus and Constantius (or, less frequently, year 1062 ''Ab urbe condita''). The ...

) *

Dorotheus of Tyre Saint Dorotheus (Greek: Άγιος Δωρόθεος) bishop of Tyre (present-day Lebanon; c. 255 – 362) is traditionally credited with an ''Acts'' of the Seventy Apostles (which may be the same work as the lost '' Gospel of the Seventy''), wh ...

, Syrian bishop and

martyr A martyr (, ''mártys'', 'witness' Word stem, stem , ''martyr-'') is someone who suffers persecution and death for advocating, renouncing, or refusing to renounce or advocate, a religious belief or other cause as demanded by an external party. In ...

(d. 362) *

Zhang Gui Zhang Gui (, 255–314) was the governor of Liang province and first Duke of Xiping under the Western Jin. He was the seventeenth generation descendant of King of Changshan Zhang Er from the Chu–Han Contention The Chu–Han Contention () ...

, Chinese governor of the

Jin Dynasty Jin may refer to: States Jìn 晉 * Jin (Chinese state) (晉國), major state of the Zhou dynasty, existing from the 11th century BC to 376 BC * Jin dynasty (266–420) (晉朝), also known as Liang Jin and Sima Jin * Jin (Later Tang precursor) ...

(d. 314) * Zuo Fen, Chinese poet of the

Western Jin Dynasty Western may refer to: Places *Western, Nebraska, a village in the US * Western, New York, a town in the US * Western Creek, Tasmania, a locality in Australia * Western Junction, Tasmania, a locality in Australia *Western world, countries that ...

(d.

300 __NOTOC__ Year 300 ( CCC) was a leap year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Constantius and Valerius (or, less frequently, year 1053 ''Ab urbe condita''). The denomination 300 ...

) *

Saint Helena Saint Helena (, ) is one of the three constituent parts of Saint Helena, Ascension and Tristan da Cunha, a remote British overseas territory. Saint Helena is a volcanic and tropical island, located in the South Atlantic Ocean, some 1,874 km ...

, Roman empress who was the reputed discoverer of Christ’s cross and mother of

Emperor Constantine Constantine I (27 February 27222 May 337), also known as Constantine the Great, was a Roman emperor from AD 306 to 337 and the first Roman emperor to convert to Christianity. He played a pivotal role in elevating the status of Christ ...

(d. 318)

Deaths

February 23 Events Pre-1600 * 303 – Roman emperor Diocletian orders the destruction of the Christian church in Nicomedia, beginning eight years of Diocletianic Persecution. * 532 – Byzantine emperor Justinian I lays the foundation stone o ...

–

Guo Huai Guo Huai (died 23 February 255), courtesy name Boji, was a Chinese military general of the state of Cao Wei during the Three Kingdoms period of China. He started his career towards the end of the Eastern Han dynasty under the warlord Cao Cao a ...

(or Boji), Chinese general *

March 16 Events Pre-1600 * 1190 – Massacre of Jews at Clifford's Tower, York. * 1244 – Over 200 Cathars who refuse to recant are burnt to death after the Fall of Montségur. * 1355 – Amidst the Red Turban Rebellions, Han Lin'er, ...

– Guanqiu Jian, Chinese general and politician *

–

, Chinese general and

regent In a monarchy, a regent () is a person appointed to govern a state because the actual monarch is a minor, absent, incapacitated or unable to discharge their powers and duties, or the throne is vacant and a new monarch has not yet been dete ...

(b. 208) * Fu Gu (or Lanshi), Chinese official and politician (b. 209) *

Liu Zan Liu Zan (183–255), courtesy name Zhengming, was a military general of the state of Eastern Wu during the Three Kingdoms period of China. He previously served under the warlord Sun Quan (later the founding emperor of Wu) in the late Eastern Han ...

(or Zhengming), Chinese general (b.

183 Year 183 ( CLXXXIII) was a common year starting on Tuesday of the Julian calendar. At the time, it was known in Rome as the Year of the Consulship of Aurelius and Victorinus (or, less frequently, year 936 ''Ab urbe condita''). The denomination ...

) *

Sun Luyu Sun Luyu (died August or September 255), courtesy name Xiaohu, was an imperial princess of the state of Eastern Wu during the Three Kingdoms period of China. She was the younger daughter of Sun Quan, the founding emperor of Wu, and his concubine ...

(or Xiaohu), Chinese princess

References

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