context: The first stage (III – I centuries BC): the Gallic tribes of the Segusiaves (Latin: Segusiavi) living along the Rhone and Sona organize at the confluence of two rivers emporia (a place for trade), and then the oppidum Lugdun (fortress of the god Luga) [6] located in the area of ​​Fourviere Hill [7]. Second stage: the foundation of the Roman colony in 43 BC. uh. by decision of the Roman Senate. Lucius Muncius Plank, commander and one of the former associates of Julius Caesar, brings troops into the Gauls settlement with the aim of founding a Roman colony and expanding Lugdun. At the end of the 1st century BC. e. - I century AD e. the colony is expanding, new administrative and private buildings appear, stone buildings are replaced by wooden and earthen, aqueducts, baths, a forum, roads are being built. The location of the city has important economic, social, religious and military significance. Lugdun is becoming the subject of attention of many Roman emperors. Augustus, Tiberius, Claudius, Caligula and others visit the city.
question: When was the city of Lyon founded?
answers.text: 43 BC. uh