Year 137 BC was a year of the pre-Julian Roman calendar

Roman calendar

The Roman calendar changed its form several times in the time between the founding of Rome and the fall of the Roman Empire. This article generally discusses the early Roman or pre-Julian calendars...

. At the time it was known as the Year of the Consulship of Porcina and Mancinus (or, less frequently, year 617 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 137 BC 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 Republic

• Slaves led by Eunus of Apamea
  Eunus
  Eunus , a slave from Apamea in Syria, became leader of the slave uprising in the First Servile War in Sicily. Eunus rose to prominence in the movement through his reputation as a wonder-worker and prophet...
  
   in Sicily
  Sicily
  Sicily is a region of Italy, and is the largest island in the Mediterranean Sea. Along with the surrounding minor islands, it constitutes an autonomous region of Italy, the Regione Autonoma Siciliana Sicily has a rich and unique culture, especially with regard to the arts, music, literature,...
  
   revolt against the Romans
  Ancient Rome
  Ancient Rome was a thriving civilization that grew on the Italian Peninsula as early as the 8th century BC. Located along the Mediterranean Sea and centered on the city of Rome, it expanded to one of the largest empires in the ancient world....
  
  .
• Tiberius Sempronius Gracchus
  Tiberius Sempronius Gracchus
  Tiberius Sempronius Gracchus may refer to:*Tiberius Sempronius Gracchus , father of Tiberius and Publius Gracchus*Tiberius Sempronius Gracchus , son of the above...
  
  , quaestor
  Quaestor
  A Quaestor was a type of public official in the "Cursus honorum" system who supervised financial affairs. In the Roman Republic a quaestor was an elected official whereas, with the autocratic government of the Roman Empire, quaestors were simply appointed....
  
   in Spain
  Spain
  Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...
  
  , observes that slave labor has displaced small freeheld farms.
• Valencia
  Valencia (city in Spain)
  Valencia or València is the capital and most populous city of the autonomous community of Valencia and the third largest city in Spain, with a population of 809,267 in 2010. It is the 15th-most populous municipality in the European Union...
  
   is founded.
• Numantian War begun, Quintus Pompeius
  Quintus Pompeius
  Quintus Pompeius was the name of various Romans from the gens Pompeius, who were of plebeian status. They lived during the Roman Republic and Roman Empire.-Consul of 141 BC:...
  
   and M. Papilius Laenas were defeated and disgraced by the Numantians in subsequent years.
• Q. Pompeius is brought to trial
  Trial
  A trial is, in the most general sense, a test, usually a test to see whether something does or does not meet a given standard.It may refer to:*Trial , the presentation of information in a formal setting, usually a court...
  
  by Q.Metellus and others, but acquitted.