Casimiro del Rosario
Filipino scientist
Casimiro Villacin del Rosario (June 13, 1896 – September 15, 1982) was a Filipino scientist. He was named a national scientist in the Philippines in 1983 for being a pioneer in physics, meteorology, and astronomy in the Philippines. Del Rosario is recognized for his restoration of the war-damaged Philippine Observatory and for his leadership in establishing various observatories to study the changing times and galaxies. He was an officer of the World Meteorological Organization
and led the establishment of the Philippine Science High School.
Biography
On June 13, 1896, Del Rosario was born in Bantayan in the Philippine province of Cebu. His parents were Pantaleon del Rosario, a farmer, and Benita Villacin. Being four years old when he was in first grade, he went the University of the Philippines after graduating from the Cebu High School. He was nineteen when he completed his first undergraduate degree, a Bachelor of Arts from the University of the Philippines in 1915. He obtained another undergraduate degree in civil engineering from the same university in 1918. Del Rosario then taught his alma mater for some time, after which he left for the United States for further study.
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The entry’s evidential value lies in the named roles, institutions and publications that can be tested against primary documentation. The source revision retrieved here is dated Sep 12, 2026. The linked authority identifier is Q12962575. None of the 1 selected statements returned an explicit reference. The first chronological checks are 1896, 1982, 1983 and 1915.
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This entry incorporates text from “Casimiro del Rosario” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.