HAUSA / FULANI Pre-Colonial Political Administration and the Emirates System The dominant political group in the northern part of Nigeria before the Uthman Dan Fodio’s Jihad of 1802 was the Hausa traditional political system. As a result of the Jihad, a large part of the Hausa kingdom was conquered by...

Opportunity cost means the alternative foregone or sacrifice made in order to satisfy another want. It refers to the need that is left unsatisfied in order to satisfy another more pressing need.