Belleville is a hill in eastern Paris where the shop signs change language as you walk up it. Boulevard de Belleville holds a North African market two mornings a week; a hundred metres higher the signs are in Chinese. Armenians, Greeks and Polish Jews came first, then Algerians, Tunisians and Moroccans, then families from Wenzhou in eastern China, and the streets they settled run into one another instead of dividing into separate quarters. From the park at the top you see the whole quarter at once, with the city behind it.
Belleville was a town of its own until 1860, when Paris annexed the whole ring of villages and split this one between two arrondissements, which is why its main street changes district as you climb. Its people stayed working-class, and the last barricade of the Paris Commune, the workers' uprising of 1871, fell in one of these streets. Painters and sculptors took the empty workshops when rents were low, and enough of them remain to make one of the city's densest clusters of studios.