Built in 2003 as a gift to the people and town of Pandan, Antique, the Dioso Library was formally inaugurated on 2 April 2004 and has been fully operational since then, opening its doors to the public six days a week. It was founded by former United Nations official Leocadio ?Leo? Dioso, Jr. and his wife Chiqui and is named in honor of his late father and namesake, Atty. Leocadio ?Cadiong? A. Dioso.