The Catacombs of Paris was initiated before the French Revolution (May 5, 1789 - November 9, 1799), but the impetus started with In Louis XV in 1763, when he issued an edict banning all burials from occurring inside the capital, due to overflow of bodies from the Black Death in the city's cemeteries, that lead to a public health crisis. The graves were disinterred and placed in the limestone tunnel under the city, and it was later popularized by Napoleon.
In the series finale of The Walking Dead: World Beyond (2020), entitled "The Last Light (2021)", CDC Doctor Edwin Jenner's (role reprised by Noah Emmerich from the first season of The Walking Dead (2010)) Video Journal Log is being reviewed by a scientist at a French Laboratory. She is eventually murdered by some unknown assailant, and ends up as a reanimated corpse that is faster and stronger any Walker seen so far. Moreover, there is a phrase scrawled on the wall "Les Morts sont nest ici", which roughly translates as "The dead are born here".
The Maquis (French for underbrush), were Resistance fighters who opposed the Nazi occupation during the Second World War (1939-1945).
The walled city seen in the show is Mont Saint-Michel which is a tidal island and mainland commune in Normandy, France. The island lies approximately one kilometre (one-half nautical mile) off France's north-western coast, at the mouth of the Couesnon River near Avranches and is 7 hectares (17 acres) in area.
"Alouette" the title of episode 2 is the name of one popular French lullaby. The song has a sing-song-like quality, bright and light, which is appropriate because the subject of the tune is a lark or a songbird. More specifically, it's about the singer's desire to kill, pluck and eat the bird. For those wondering why the singer wants to eat the songbird and not an owl or eagle--well, some scholars believe the songbird takes center stage because it is the first to sing in the morning., which starts the morning routine and parts lovers and families from their beds and homes. Irked by being awakened to responsibility, the hunter goes out to permanently shut off nature's alarm clock.