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 works of Flavius Josephus	01/21/1970	public	increased	20,674.64	100
De civitate Dei	01/21/1970	public	increased	20,674.67	100
Enarrationes in Psalmos	01/21/1970	public	increased	20,674.67	100
Confessions	01/21/1970	public	increased	20,674.55	100
In His steps	01/21/1970	public	increased	20,674.94	100
Systema naturae	01/21/1970	public	increased	20,674.63	100
Alice's Adventures in Wonderland	01/21/1970	public	increased	20,674.55	100
Alice's Adventures in Wonderland / Through the Looking-Glass / The Hunting of the Snark	01/21/1970	public	increased	20,674.55	100
Esther Waters, a novel	01/21/1970	public	increased	20,674.63	100
Streffleurs militärische Zeitschrift	01/19/1970	public	increased	20,676.76	100
Die goldenen Früchte	01/21/1970	borrowable	increased	20,674.63	100
Raffaello	01/21/1970	public	increased	20,674.6	100
A dictionary of scientific terms	01/21/1970	public	increased	20,674.59	100
De consolatione philosophiae	01/21/1970	public	increased	20,674.64	100
Dionysiaca	01/21/1970	public	increased	20,674.65	100
Gants Ṭevye der milkhiger	01/21/1970	public	increased	20,674.64	100
Tractatus logico-philosophicus	01/21/1970	public	increased	20,674.57	100
Die Geächteten	01/21/1970	no_ebook	increased	20,674.72	100
Duden	01/21/1970	public	increased	20,674.65	100
Ten books on architecture	01/21/1970	public	increased	20,674.56	100
Under the duvet	01/21/1970	printdisabled	increased	20,674.55	100
The frontier in American history	01/21/1970	public	increased	20,674.61	100
At the Earth's Core	01/21/1970	public	increased	20,674.57	100
The Beasts of Tarzan (Classic Ace SF, F-203)	01/21/1970	public	increased	20,674.57	100
The Gods of Mars	01/21/1970	public	increased	20,674.57	100
Tarzan, Lord of the Jungle (Tarzan, Book 11)	01/21/1970	borrowable	increased	20,674.57	100
Tarzan and the Ant Men	01/21/1970	borrowable	increased	20,674.57	100
Tarzan and the Golden Lion	01/21/1970	public	increased	20,674.68	100
Tarzan and the Lost Empire	01/21/1970	borrowable	increased	20,674.57	100
Tarzan the Terrible (#8)	01/21/1970	public	increased	20,674.55	100
Tarzan the Untamed (Book #7)	01/21/1970	public	increased	20,674.57	100
Thuvia, Maid of Mars	01/21/1970	borrowable	increased	20,674.57	100
The warlord of Mars #3	01/21/1970	public	increased	20,674.55	100
A Princess of Mars	01/21/1970	public	increased	20,674.57	100
The War Chief	01/21/1970	borrowable	increased	20,674.55	100
The Moon Maid	01/21/1970	public	increased	20,674.57	100
The Master Mind of Mars	01/21/1970	public	increased	20,674.57	100
The Cave Girl	01/21/1970	public	increased	20,674.57	100
The Lost Continent	01/21/1970	no_ebook	increased	20,674.63	100
The land that time forgot	01/21/1970	borrowable	increased	20,674.64	100
Pellucidar	01/21/1970	public	increased	20,674.6	100
The Outlaw of Torn	01/21/1970	public	increased	20,674.57	100
The Chessmen of Mars	01/21/1970	public	increased	20,674.56	100
Jungle Tales of Tarzan	01/21/1970	public	increased	20,674.56	100
Tarzan and the Jewels of Opar	01/21/1970	public	increased	20,674.55	100
The Return of Tarzan	01/21/1970	public	increased	20,674.55	100
The Son of Tarzan	01/21/1970	public	increased	20,674.55	100
Tarzan of the Apes	01/21/1970	public	increased	20,674.55	100
I Malavoglia di Giovanni Verga	01/21/1970	public	increased	20,674.57	100
The story of mankind	01/21/1970	public	increased	20,674.62	100