58 BC

Year 58 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Piso and Gabinius (or, less frequently, year 696 Ab urbe condita). The denomination 58 BC 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. Events 
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By place

Roman Republic 
 Consuls: Lucius Calpurnius Piso Caesoninus and Aulus Gabinius. Publius Clodius Pulcher, Roman tribune, institutes a monthly corn dole for poor Romans, and exiles Cicero from the city. Cyprus becomes a Roman province. First year of Julius Caesar's Gallic Wars:
 Julius Caesar becomes a provincial governor (proconsul) and leads a Roman army (6 Roman legions; Legio VII, Legio VIII, Legio IX, Legio X, and newly levied Legio XI and Legio XII) into Gaul. He deploys auxiliaries as part of this army, including Balearic slingers, Numidian and Cretan archers, and Celtic/Gallic cavalry (such as the allied Aedui). Caesar builds a 19-mile earthwork, complete with fortifications and watchtowers, between Lake Geneva and the Jura Mountains. June – Caesar defeats the migrating Helvetii in the Battle of the Arar (Saône). July – Caesar decisively defeats the Helvetii in the Battle of Bibracte. September – Caesar decisively defeats the Suebi led by King Ariovistus in the Battle of Vosges. Winter – Caesar leaves his legions in winter quarters among the Sequani (located in modern-day Burgundy) far to the north of the formal boundary of Gallia Transalpina. He returns to Gallia Cisalpina, carrying out judicial and administrative activities. Egypt 
 Berenice IV becomes queen of Egypt after temporarily dethroning her father, King Ptolemy XII Auletes. Asia 
 Base year of the Vikrama Era, founded by Vikrama, king of Ujjain in India. Births 
 Jumong (King Dongmyeong), king of Goguryeo (d. AD 19)
 Attica, first wife of the Roman general Marcus Vipsanius Agrippa

Deaths 
 Go Museo Dangun, 6th ruler of Buyeo (Korea)
 Ptolemy of Cyprus, last Hellenistic king of Cyprus

References