Source Data Reference for:

City = Narbonne
Time = 1800

City	Year	Size	Size Comment	Year Comment	Author	Title	Location
Narbonne	1800	9,000			Paul Bairoch	La population des villes europeennes de 800 a 1850
Narbonne	1815	10,300			Valentin Parisot	Dictionnaire geographique universelle