Academic SubjectsClassified
Agriculture: Agriculture by type (Wikipedia)
Anthropology: Anthropology (Wikipedia)
Archaeology: Subfields of Archaeology (Wikipedia)
Astronomy: Astronomical Subdisciplines (Wikipeida)
Biology: Branches of Biology (Wikipedia)
Chemistry: Outline of Chemistry (Wikipedia)
Geology: Subfields of Geology (Wikipedia)
History: Fields of History (Wikipedia)
Linguistics: Branches of Linguistics (Wikipedia)
Mathematics: Mathematics Subject Classification (MSC)
Psychology: Psychology Subfields (APA)
Sociology: Subfields of Sociology (Wikipedia)
Library Classifications Systems