Year 171 ( CLXXI) 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 Severus and Herennianus (or, less frequently, year 924 ''

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 171 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

Roman Empire

* Emperor

Marcus Aurelius Marcus Aurelius Antoninus ( ; ; 26 April 121 – 17 March 180) was Roman emperor from 161 to 180 and a Stoicism, Stoic philosopher. He was a member of the Nerva–Antonine dynasty, the last of the rulers later known as the Five Good Emperors ...

forms a new military command, the ''praetentura Italiae et Alpium''.

Aquileia Aquileia is an ancient Roman city in Italy, at the head of the Adriatic at the edge of the lagoons, about from the sea, on the river Natiso (modern Natisone), the course of which has changed somewhat since Roman times. Today, the city is small ( ...

is relieved, and the

Marcomanni The Marcomanni were a Germanic people who lived close to the border of the Roman Empire, north of the River Danube, and are mentioned in Roman records from approximately 60 BC until about 400 AD. They were one of the most important members of th ...

are evicted from Roman territory. * Marcus Aurelius signs a peace treaty with the

Quadi The Quadi were a Germanic peoples, Germanic people during the Roman era, who were prominent in Greek and Roman records from about 20 AD to about 400 AD. By about 20 AD they had a kingdom centred in the area of present-day western Slovakia, north ...

and the

Sarmatian The Sarmatians (; ; Latin: ) were a large confederation of Ancient Iranian peoples, ancient Iranian Eurasian nomads, equestrian nomadic peoples who dominated the Pontic–Caspian steppe, Pontic steppe from about the 5th century BCE to the 4t ...

Iazyges The Iazyges () were an ancient Sarmatians, Sarmatian tribe that traveled westward in 200BC from Central Asia to the steppes of modern Ukraine. In , they moved into modern-day Hungary and Serbia near the Pannonian steppe between the Danube ...

. The

Germanic tribes The Germanic peoples were tribal groups who lived in Northern Europe in Classical antiquity and the Early Middle Ages. In modern scholarship, they typically include not only the Roman-era ''Germani'' who lived in both ''Germania'' and parts ...

of the

Hasdingi The Hasdingi were one of the Vandal peoples of the Roman era. The Vandals were Germanic peoples, who are believed to have spoken an East Germanic language, and were first reported during the first centuries of the Roman empire in the area which i ...

(

Vandals The Vandals were a Germanic people who were first reported in the written records as inhabitants of what is now Poland, during the period of the Roman Empire. Much later, in the fifth century, a group of Vandals led by kings established Vand ...

) and the

Lacringi The Lacringi were an ancient Germanic tribe who participated in the Marcomannic Wars during the reign of Emperor Marcus Aurelius. After the tribes' initial crossing of the Danube was pushed back, their Vandal allies, the Astingi staged another i ...

become Roman allies. *

Armenia Armenia, officially the Republic of Armenia, is a landlocked country in the Armenian Highlands of West Asia. It is a part of the Caucasus region and is bordered by Turkey to the west, Georgia (country), Georgia to the north and Azerbaijan to ...

and

Mesopotamia Mesopotamia is a historical region of West Asia situated within the Tigris–Euphrates river system, in the northern part of the Fertile Crescent. Today, Mesopotamia is known as present-day Iraq and forms the eastern geographic boundary of ...

become

protectorate A protectorate, in the context of international relations, is a State (polity), state that is under protection by another state for defence against aggression and other violations of law. It is a dependent territory that enjoys autonomy over ...

s of the

Roman Empire The Roman Empire ruled the Mediterranean and much of Europe, Western Asia and North Africa. The Roman people, Romans conquered most of this during the Roman Republic, Republic, and it was ruled by emperors following Octavian's assumption of ...

. * The

Costoboci The Costoboci (; , or Κιστοβῶκοι) were a Dacian tribe located, during the Roman imperial era, between the Carpathian Mountains and the river Dniester river, Dniester. During the Marcomannic Wars the Costoboci invaded the Roman Empire i ...

cross the Danube (

Dacia Dacia (, ; ) was the land inhabited by the Dacians, its core in Transylvania, stretching to the Danube in the south, the Black Sea in the east, and the Tisza in the west. The Carpathian Mountains were located in the middle of Dacia. It thus ro ...

) and ravage

Thrace Thrace (, ; ; ; ) is a geographical and historical region in Southeast Europe roughly corresponding to the province of Thrace in the Roman Empire. Bounded by the Balkan Mountains to the north, the Aegean Sea to the south, and the Black Se ...

in the

Balkan Peninsula The Balkans ( , ), corresponding partially with the Balkan Peninsula, is a geographical area in southeastern Europe with various geographical and historical definitions. The region takes its name from the Balkan Mountains that stretch throug ...

. They reach

Eleusis Elefsina () or Eleusis ( ; ) is a suburban city and Communities and Municipalities of Greece, municipality in Athens metropolitan area. It belongs to West Attica regional unit of Greece. It is located in the Thriasio Plain, at the northernmost ...

, near

Athens Athens ( ) is the Capital city, capital and List of cities and towns in Greece, largest city of Greece. A significant coastal urban area in the Mediterranean, Athens is also the capital of the Attica (region), Attica region and is the southe ...

, and destroy the temple of the

Eleusinian Mysteries The Eleusinian Mysteries () were initiations held every year for the Cult (religious practice), cult of Demeter and Persephone based at the Panhellenic Sanctuary of Eleusis in ancient Greece. They are considered the "most famous of the secret rel ...

. *

May May is the fifth month of the year in the Julian and Gregorian calendars. Its length is 31 days. May is a month of spring in the Northern Hemisphere, and autumn in the Southern Hemisphere. Therefore, May in the Southern Hemisphere is the ...

–

June June is the sixth and current month of the year in the Julian and Gregorian calendars—the latter the most widely used calendar in the world. Its length is 30 days. June succeeds May and precedes July. This month marks the start of su ...

–

Aelius Aristides Publius Aelius Aristides Theodorus (; 117–181 AD) was a Greek orator and author considered to be a prime example as a member of the Second Sophistic, a group of celebrated and highly influential orators who flourished from the reign of Nero unt ...

, Greek orator, delivers a public speech in

Smyrna Smyrna ( ; , or ) was an Ancient Greece, Ancient Greek city located at a strategic point on the Aegean Sea, Aegean coast of Anatolia, Turkey. Due to its advantageous port conditions, its ease of defence, and its good inland connections, Smyrna ...

, lamenting the damage recently inflicted to the sacred site of Eleusis.

Births

Sima Lang Sima Lang (171–217), courtesy name Boda, was a government official who lived during the late Eastern Han dynasty of China. He was the eldest among the eight sons of Sima Fang, who served as the Intendant of the Capital () during the reign o ...

, Chinese official and politician (d.

217 Year 217 ( CCXVII) was a common year starting on Wednesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Praesens and Extricatus (or, less frequently, year 970 ''Ab urbe condita''). The denomination 217 for ...

) *

Tian Yu Tian Yu (c. 171 – c. 252), courtesy name Guorang, was a military general of the state of Cao Wei during the Three Kingdoms period of China. Life Tian Yu was from Yongnu County (), Yuyang Commandery (), which is present-day Wuqing Distr ...

, Chinese general and politician (d.

252 Year 252 ( CCLII) was a leap year starting on Thursday of the Julian calendar. At the time, it was known as the Year of the Consulship of Trebonianus and Volusianus (or, less frequently, year 1005 ''Ab urbe condita''). The denomination 252 for t ...

) *

Xu Gan Xu Gan (Chinese: 徐幹, pinyin ''Xú Gàn'', 171 – March or April 218?(文义未究，年四十八，建安二十三年春二月遭厉疾，大命陨颓，...) ''Quan Sanguo Wen'', vol.55 (section: "Zhonglun Xu" (preface to the ''Zhonglun'')). ...

, Chinese philosopher and poet (d.

218 Year 218 ( CCXVIII) was a common year starting on Thursday of the Julian calendar. At the time, it was known as the Year of the Consulship of Severus and Adventus (or, less frequently, year 971 ''Ab urbe condita''). The denomination 218 for th ...

) * Zhao Yan, Chinese general and politician (d.

245 __NOTOC__ Year 245 ( CCXLV) was a common year starting on Wednesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Philippus and Titianus (or, less frequently, year 998 ''Ab urbe condita''). The denomination ...

)

Deaths

References

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