Unverified50% confidenceFactExact time
The Dewey Decimal Classification was proposed by Melville Dewey in 1876, dividing all knowledge into 10 main classes, each further subdivided level by level into 10 divisions and 10 sections, forming a hierarchical numeric coding.
1
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50%
Confidence
Long-term
Relevance
10/17/2026
First Seen
Sources
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