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In page Bamako:
"The area of the city has evidence of settlements since the Palaeolithic era.[citation needed] The fertile lands of the Niger River Valley provided the people with an abundant food supply and early chiefdoms in the area grew wealthy as they established trade routes linking across west Africa, the Sahara, and leading to northern Africa and Europe as early as 600s BCE. The early inhabitants traded gold, ivory, kola nuts, and salt. By the 11th century, the Empire of Ghana became the first kingdom to dominate the area, later succeeded by the Mali Empire.[1]