The city-state sided with the Roman Republic against Carthage during the Second Punic War (218–201 BC), retaining its independence and commercial empire throughout the western Mediterranean even as Rome expanded into Western Europe and North Africa.
However, the city lost its independence following the Roman Siege of Massilia in 49 BC, during Caesar’s Civil War, in which Massalia sided with the exiled faction at war with Julius Caesar. Afterward the Gallo-Roman culture was initiated.
The city maintained its position as a premier maritime trading hub even after its capture by the Visigoths in the fifth century AD, although the city went into decline following the sack of 739 AD by the forces of Charles Martel against the Umayyad Arabs.
It became part of the County of Provence during the tenth century, although its renewed prosperity was curtailed by the Black Death of the 14th century and a sack of the city by the Crown of Aragon in 1423.
The city’s fortunes rebounded with the ambitious building projects of René of Anjou, Count of Provence, who strengthened the city’s fortifications during the mid-15th century. During the 16th century the city hosted a naval fleet with the combined forces of the Franco-Ottoman alliance, which threatened the ports and navies of the Genoese Republic.
Marseille lost a significant portion of its population during the Great Plague of Marseille in 1720, but the population had recovered by mid-century. In 1792, the city became a focal point of the French Revolution and though France’s national anthem was born in Strasbourg, it was first sung in Paris by volunteers from Marseille, hence the name the crowd gave it: La Marseillaise.
The Industrial Revolution and establishment of the French Empire during the 19th century allowed for further expansion of the city, although it was occupied by the German Wehrmacht in November 1942 and subsequently heavily damaged during World War II. The city has since become a major center for immigrant communities from former French colonies, such as French Algeria.