Classification
170 - Ethics
900 - History & geography
3
200 - Religion
2
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
333 - Economics of land & energy
1
363 - Other social problems & services
1
370 - Education
1
700 - The arts; fine & decorative arts
1
780 - Music
1
791 - Public performances
1
800 - Literature & rhetoric
1