Public Domain Calendar & Archive

Name: Public Domain Calendar & Archive
Creator: Old Post Books
License: Open Library records may combine sources; record-level provenance and applicable rights statements are retained.

Public Domain Calendar & Archive organizes records from Open Library APIs and data into a static table for transparent comparison. It preserves official source links and dates, marks missing enrichment, and adds deterministic grouping, change, recency, trend, or significance fields only where the documented inputs support them, without recommendations or unsupported claims.

Records: 5,000
Last changed: 08/30/2026
Update schedule: 51 13 * * 5 UTC
Coverage: 01/17/1970–01/21/1970
Method: Methodology

Record	Record Date	Vuga Group	Change Status	Recency Days	Public Significance Score
Political Ideals	01/21/1970	public	increased	20,674.66	100
What I believe	01/21/1970	public	increased	20,674.73	100
Introduction to mathematical philosophy	01/21/1970	public	increased	20,674.68	100
Roads to Freedom	01/21/1970	public	increased	20,674.6	100
The ABC of atoms	01/21/1970	public	increased	20,674.63	100
An outline of philosophy	01/21/1970	printdisabled	increased	20,674.63	100
The principles of mathematics	01/21/1970	public	increased	20,674.72	100
Why I am not a Christian	01/21/1970	public	increased	20,674.6	100
The conquest of happiness	01/21/1970	printdisabled	increased	20,674.58	100
The Problem of China	01/21/1970	public	increased	20,674.65	100
The Analysis of Matter	01/21/1970	public	increased	20,674.6	100
Marriage and morals	01/21/1970	public	increased	20,674.65	100
The Problems of Philosophy	01/21/1970	public	increased	20,674.57	100
The analysis of mind	01/21/1970	public	increased	20,674.63	100
Philosophical essays	01/21/1970	public	increased	20,674.66	100
The naturalist on the River Amazons	01/21/1970	public	increased	20,674.66	100
The Blue Fairy Book	01/21/1970	public	increased	20,674.62	100
The Blue Poetry Book	01/21/1970	public	increased	20,674.63	100
The Book of Dreams and Ghosts	01/21/1970	public	increased	20,674.63	100
The Brown Fairy Book	01/21/1970	public	increased	20,674.63	100
The Crimson Fairy Book	01/21/1970	public	increased	20,674.55	100
The Green Fairy Book	01/21/1970	public	increased	20,674.65	100
The Grey Fairy Book	01/21/1970	public	increased	20,674.56	100
The Lilac Fairy Book	01/21/1970	public	increased	20,674.63	100
The Maid of France	01/21/1970	public	increased	20,674.65	100
Myth, Ritual, and Religion, Vol. 1	01/21/1970	public	increased	20,674.56	100
The Olive Fairy Book (Complete & Unabridged)	01/21/1970	public	increased	20,674.69	100
The Orange Fairy Book	01/21/1970	public	increased	20,674.55	100
The Pink Fairy Book	01/21/1970	public	increased	20,674.55	100
The Red Fairy Book	01/21/1970	public	increased	20,674.63	100
The Violet Fairy Book (Large Print)	01/21/1970	public	increased	20,674.56	100
The Yellow Fairy Book	01/21/1970	public	increased	20,674.63	100
The true story book	01/21/1970	public	increased	20,675.03	100
The red true story book	01/21/1970	public	increased	20,674.57	100
Magic and religion	01/21/1970	public	increased	20,674.61	100
Modern mythology	01/21/1970	public	increased	20,674.63	100
A Short History of Scotland	01/21/1970	public	increased	20,674.56	100
Historical Mysteries	01/21/1970	public	increased	20,674.63	100
Homer and His Age	01/21/1970	public	increased	20,674.65	100
Books and bookmen	01/21/1970	public	increased	20,674.62	100
Custom and myth	01/21/1970	public	increased	20,674.56	100
Discourses on Livy	01/21/1970	public	increased	20,674.65	100
The Prince	01/21/1970	public	increased	20,674.55	100
The first part of the Institutes of the Lawes of England	01/21/1970	public	increased	20,674.56	100
Vita di Benvenuto Cellini	01/21/1970	public	increased	20,674.63	100
The Card, A Story Of Adventure In The Five Towns	01/21/1970	public	increased	20,674.56	100
The Grand Babylon Hotel	01/21/1970	public	increased	20,674.56	100
Curious myths of the Middle Ages	01/21/1970	public	increased	20,674.56	100
The lives of the saints	01/21/1970	public	increased	20,674.66	100
The Oxford Book of Carols	01/21/1970	borrowable	increased	20,674.77	100