He completed his elementary, high school, college, and post-graduate studies at the Ateneo de Manila University, where he cultivated and pursued his interests in mathematics, physics, linguistics, history, economics, and philosophy.He resumed his high school studies at the Ateneo de Manila, and obtained his college degree in Philosophy in 1976, graduating with Departmental Honors.Manapat was pursuing a doctorate in Economics at the New School for Social Research in New York, when he decided to return to the Philippines after the People Power movement led by President Corazon Aquino in 1986.[dead link] While in the United States, Manapat also took computer programming courses at New York University and briefly taught at St. Peter's College in New Jersey.Manapat started the project to digitize all the important historical document holdings of the National Archives, storing them in computer media in order to preserve them and make them more accessible to the public.[11] Manapat then went on leave from the National Archives[12] to pursue a doctoral degree in Historical Sociology at La Trobe University in Australia.