The chapter provides an analysis of several primary sources from Philippine history, including Antonio Pigafetta's chronicle of Magellan's voyage, the Kartilya ng Katipunan, the 1898 Proclamation of Philippine Independence, and political caricatures from the American period. It also examines Corazon Aquino's 1986 speech to the US Congress. The sources are critically examined to extract meaning and understand their historical context. Specifically, Pigafetta's work and journey are summarized, and the objectives of the Kartilya ng Katipunan are outlined. Key details of the 1898 proclamation declaring independence from Spain are highlighted. Various political cartoons from 1900-1941 are also analyzed.