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
The Letters of Horace Walpole	01/21/1970	public	increased	20,674.78	100
How the other half lives	01/21/1970	public	increased	20,674.58	100
The last Egyptian	01/21/1970	public	increased	20,674.78	100
Little Wizard stories of Oz	01/21/1970	borrowable	increased	20,674.79	100
Table talk: original essays on men and manners	01/21/1970	public	increased	20,674.56	100
John Dough and the cherub	01/21/1970	public	increased	20,674.73	100
The Marvelous Land of Oz	01/21/1970	public	increased	20,674.63	100
Mother Goose in Prose	01/21/1970	public	increased	20,674.75	100
The Patchwork Girl of Oz	01/21/1970	public	increased	20,674.55	100
The Emerald City of Oz	01/21/1970	public	increased	20,674.62	100
The Lost Princess of Oz	01/21/1970	public	increased	20,674.56	100
Dorothy and the Wizard in Oz	01/21/1970	public	increased	20,674.64	100
Tik-Tok of Oz	01/21/1970	public	increased	20,674.55	100
Ozma of Oz	01/21/1970	public	increased	20,674.67	100
The Wonderful Wizard of Oz	01/21/1970	public	increased	20,674.56	100
Number the Stars	01/21/1970	printdisabled	increased	20,674.55	100
The Music of Dolphins	01/21/1970	printdisabled	increased	20,674.64	100
De architectura	01/21/1970	public	increased	20,674.55	100
The inside of the cup	01/21/1970	public	increased	20,674.59	100
Postures	01/21/1970	printdisabled	increased	20,674.77	100
Jane's Fighting Ships	01/21/1970	borrowable	increased	20,674.63	100
The sense of beauty	01/21/1970	public	increased	20,674.58	100
Slow Horses	01/21/1970	borrowable	increased	20,674.56	100
The Linwoods, Vol. 2	01/21/1970	public	increased	20,674.55	100
But gentlemen marry brunettes	01/21/1970	public	increased	20,674.71	100
Gentlemen Prefer Blondes	01/21/1970	public	increased	20,674.59	100
The Green Man	01/21/1970	borrowable	increased	20,674.55	100
Engineering Mechanics, Statics	01/21/1970	printdisabled	increased	20,674.64	100
Management	01/21/1970	borrowable	increased	20,674.8	100
Shop Management	01/21/1970	public	increased	20,674.64	100
The Principles of Scientific Management	01/21/1970	public	increased	20,674.61	100
The Theory of the Leisure Class	01/21/1970	public	increased	20,674.57	100
R. Holmes & Co.	01/21/1970	public	increased	20,674.57	100
The Enchanted Typewriter	01/21/1970	public	increased	20,674.74	100
A House-Boat on the Styx	01/21/1970	public	increased	20,674.67	100
Rou pu tuan	01/21/1970	borrowable	increased	20,674.76	100
A lantern in her hand	01/21/1970	public	increased	20,674.67	100
El Amo Del Juego/Masters of the Game	01/21/1970	borrowable	increased	20,674.55	100
Sampson Low's catalogue of books published in the United Kingdom.	01/21/1970	no_ebook	increased	20,674.63	100
The Ladies of Missalonghi	01/21/1970	borrowable	increased	20,674.7	100
The great controversy	01/21/1970	public	increased	20,674.56	100
Le répertoire de la cuisine	01/21/1970	borrowable	increased	20,674.64	100
Mas̲navī	01/21/1970	borrowable	increased	20,674.62	100
The Magic of Thinking Big	01/21/1970	printdisabled	increased	20,674.64	100
Recuerdos de mi vida	01/21/1970	public	increased	20,674.8	100
Aethiopica	01/21/1970	public	increased	20,674.61	100
The Land of Little Rain	01/21/1970	public	increased	20,674.67	100
Curriculum	01/21/1970	printdisabled	increased	20,674.72	100
The home-maker	01/21/1970	borrowable	increased	20,674.62	100
Understood Betsy	01/21/1970	public	increased	20,674.7	100