Gbandi, Gio, Grebo, Gola, Kissi, Kpelle, Kru, Lorma, Mano, Mandingo, Mende, Sapo, and Vai. Institutions of Higher Learning: The University of Liberia is located in Monrovia .  Opened in 1862, it is one of Africa's oldest institutes of higher learning.  UOL has degrees in Business and Public Administration, Agriculture & Forestry,