The document summarizes the evolution and current state of local governments in the Philippines. It discusses the pre-Hispanic barangays that formed the earliest political units. It then describes how the Spanish introduced centralism through pueblos, cabildos and provinces. American rule saw townships formed but centralism remained. The 1991 Local Government Code granted authentic local autonomy by devolving powers from the national to local levels. It also details the different types of local units - barangays, municipalities, cities, provinces - and the Autonomous Region of Muslim Mindanao.