Source Data Reference for:

City = Gbogun
Time = 1800

City	Year	Size	Size Comment	Year Comment	Author	Title	Location
Gbogun	1800	35,000	"btw 30,000 & 40,000"		Tertius Chandler	Four thousand years of urban growth	p59
Gbogun	1800	30,500	"btw 30,000 & 31,000"		Tertius Chandler	Four thousand years of urban growth	p487