ティエールの城壁
Paris was only half its present size in the years of the Ceinture's creation: its limits then were the city's 1784 Fermiers-Généraux tax wall that followed almost exactly today's Métro lines 6 and 2). From 1841, Paris dotted itself with a ring of defences a few kilometres outside these: completed in 1845, the Thiers wall fortifications enclosed land that was mostly countryside, save for a few 'faubourgs' extending for a distance along the roadways from its city gates.