The document discusses the 1897 Constitution of Biak-na-Bato, which was a provisional constitution created during the Philippine Revolution and led by Emilio Aguinaldo. Additionally, it details the Pact of Biak-na-Bato, a truce between Spanish authorities and Aguinaldo's revolutionaries that resulted in Aguinaldo's exile and the establishment of the ultimate governing body for the Philippine Republic. The latter part of the document touches on Ferdinand Marcos's authoritarian rule in the Philippines, highlighting significant events leading to the EDSA People Power Revolution in 1986.