What is Gadaa The Gadaa system is a time-honored age and generation-set system practiced among the Oromo people who regarded the system as their common heritage and as one of their major identity makers. The system has long been practiced by the Borena, Guji, Karayu, Tulama, Arsi, Ittu, Humbana, Afran Qallo, Akichu, Macha, and Gabra clans of the Oromo Nation. Major Oromo clans have established the centres of their Gada at several places based on their territorial settlement. The Borana and the G