The document summarizes the evolution of government in the Philippines from pre-Hispanic times to the present. It describes the social class systems of early Filipino societies and the governments that were established under Spanish colonial rule, American rule, Japanese occupation, and independence. Key details include the establishment of the Katipunan secret society, various revolutionary governments, the implementation of commonwealth status, and the presidents that have led the country. It also provides an overview of the executive and legislative branches of the current Philippine government system.