Background
Mactal, Ronaldo Barlaan was born on September 5, 1970 in Solana, Cagayan.
Mactal, Ronaldo Barlaan was born on September 5, 1970 in Solana, Cagayan.
Bachelor in History cum laude, University Philippines, Diliman, 1993. Master of Arts in History, University Philippines, Diliman, 1996. Doctor of Philosophy in History, University Philippines, Diliman, 1999.
Instructor, department science University Philippines, Los Banos, 1993—1995, instructor, department history Diliman, 1995—1997. Lecturer, international studies department Miriam College, Quezon City, 1995—1997. Lecturer College Arts and Sciences St. Scholastica's College, Manila, 1997—2000.
Lecturer, department social science Philippine Normal University, 1998—2001. Assistant professor, department social science University Philippines, Manila, 1998—2001. Associate professor, department history De La Salle University, since 2001.
Consultant, Social Studies, Curriculum Development Division, Bureau Secondary Education, DepEd-Philippines. Textbook writer Phoenix Publishing House Inc., since 1997. Textbook evaluator IMCS Department Education, Philippines, 2004—2008.
Volunteer teacher Gurong Pahinungod University Philippines, 1996—2000. Co-project director, training program public school teachers Department History De La Salle University, Manila, 2004—2007, project director, 2004—2007. Chair, committee national issues and concerns De La Salle University, 2005—2007.
Vice head, national committee history research National Commission Culture and Arts, 2006—2007. Member, national executive committee National Committee History Research National Commission Culture and Arts, 2004—2007. Member of Oustanding Young Scientist Inc.
(founder), Philippine History Association Inc. (life), Philippine National History Society Inc. (life), Manila Studies Association Inc.