Dewey Decimal System Day

Category: Science
Dewey Decimal System Day in USA in 2025
Image by Maggie Appleton , from Flickr. CC BY-SA 2.0

About Dewey Decimal System Day

How long until Dewey Decimal System Day?
Dewey Decimal System Day .
Dates of Dewey Decimal System Day
2026 USA Thursday, December 10thDewey Decimal System Day
2025 USA Wednesday, December 10thDewey Decimal System Day
2024 USA Tuesday, December 10thDewey Decimal System Day
2023 USA Sunday, December 10thDewey Decimal System Day
2022 USA Saturday, December 10thDewey Decimal System Day
Summary
File this holiday under library related observances. Top shelf just after ISBN Number Day.

The Dewey Decimal Classification, colloquially the Dewey Decimal System, is a proprietary library classification system first published in the United States by Melvil Dewey in 1876.

It is observed on the birthday of Melvil Dewey, who was born on December 10th 1851.

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