This document provides an overview of Oromo history, culture, and social organization. It discusses:
1) The origins and expansion of the Oromo people in the 16th-17th centuries as they recovered territory and established control over large parts of the Horn of Africa through their advanced social system known as the gada system.
2) Details of the gada system, which organized Oromo society democratically around principles of checks and balances, division of powers, and power sharing. It grouped people by age-sets and generation-sets for social, political and economic purposes.
3) How the gada system allowed the Oromo to politically and numerically strengthen themselves until they were