First Main Classes
Last Main Classes
History
100

The first of the 10 main classes is 

General Works

100

The 9th main class is called

Literature

100

The creator of this system is 

Melvil Dewey

200

The class that's numbers are 400-499 is called

Language

200

The class that is numbers 600-699 is 

Pure science

200

The founder of libraries 

Benjamin Franklin

300

The second class is 

Philosophy

300

History, Geography, Biography is what numbers

900-999

300

The first part of the caveman story

There was a caveman thinking about himself

400

Social Sciences is what numbers 

300-399

400

The seventh main class is called

Applied science

500

The class that is numbers 200-299

Religion

500

The arts is what numbers

800-899

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