Oil Agriculture Manufacturing Tourism
1950 1960 1970 1940
Atlas Tibetsi Virunga Ruwenzori
Faya Fada Koro Toro Mao
Faya Sarh Am Timan Mao
Iraq Iran Angola Libya
Sarh Moundou Bongor Ndjamena
Germany Spain Britain France
Fort Worth Fort Lamy Fort Beaufort Fort William
750 000 7.5 million 75 million 75 000