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 Sign of Four	01/21/1970	public	increased	20,674.57	100
The Great Shadow	01/21/1970	public	increased	20,674.55	100
His Last Bow [8 stories]	01/21/1970	public	increased	20,674.55	100
The Hound of the Baskervilles	01/21/1970	public	increased	20,674.57	100
Rodney Stone	01/21/1970	public	increased	20,674.57	100
The Lost World	01/21/1970	public	increased	20,674.57	100
Memoirs of Sherlock Holmes [11 stories]	01/21/1970	public	increased	20,674.55	100
The Mystery of Cloomber	01/21/1970	public	increased	20,674.57	100
The Return of Sherlock Holmes	01/21/1970	public	increased	20,674.57	100
Sherlock Holmes (Hound of the Baskervilles / Sign of Four / Study in Scarlet / Valley of Fear)	01/21/1970	borrowable	increased	20,674.57	100
A Study in Scarlet	01/21/1970	public	increased	20,674.56	100
Novels (Sign of Four / Study in Scarlet)	01/21/1970	public	increased	20,674.63	100
Uncle Bernac	01/21/1970	public	increased	20,674.57	100
The Valley of Fear	01/21/1970	public	increased	20,674.57	100
A Visit to Three Fronts	01/21/1970	public	increased	20,674.77	100
Round the Red Lamp	01/21/1970	public	increased	20,674.63	100
The land of mist	01/21/1970	public	increased	20,674.57	100
The White Company	01/21/1970	public	increased	20,674.55	100
The Complete Sherlock Holmes [4 novels, 56 stories]	01/21/1970	public	increased	20,674.55	100
The history of spiritualism	01/21/1970	borrowable	increased	20,674.55	100
The Adventure of the Speckled Band	01/21/1970	public	increased	20,674.62	100
The Parasite	01/21/1970	public	increased	20,674.57	100
The New Revelation	01/21/1970	public	increased	20,674.57	100
Through the Magic Door	01/21/1970	public	increased	20,674.57	100
The Firm of Girdlestone	01/21/1970	public	increased	20,674.57	100
The Great Boer War	01/21/1970	public	increased	20,674.63	100
Beyond the City	01/21/1970	public	increased	20,674.57	100
The Exploits of Brigadier Gerard	01/21/1970	public	increased	20,674.57	100
Sir Nigel	01/21/1970	public	increased	20,674.55	100
Micah Clarke	01/21/1970	public	increased	20,674.65	100
The Refugees	01/21/1970	public	increased	20,674.6	100
The Adventures of Gerard	01/21/1970	public	increased	20,674.59	100
The Poison Belt	01/21/1970	public	increased	20,674.57	100
Principles of economics	01/21/1970	public	increased	20,674.66	100
Treatise on the gods	01/21/1970	public	increased	20,674.58	100
The philosophy of Friedrich Nietzsche	01/21/1970	public	increased	20,674.57	100
Prejudices	01/21/1970	public	increased	20,674.58	100
An Investigation of the Laws of Thought (Barnes & Noble)	01/21/1970	public	increased	20,674.62	100
The Bad Place	01/21/1970	borrowable	increased	20,674.61	100
Versuch über die wahre Art das Clavier zu spielen	01/21/1970	public	increased	20,674.63	100
The Adventures of Odysseus And Tales of Troy	01/21/1970	public	increased	20,674.66	100
Golden Fleece and the Heroes Who Lived Before Achilles, The	01/21/1970	public	increased	20,674.6	100
The children of Odin	01/21/1970	public	increased	20,674.66	100
The King of Ireland's Son	01/21/1970	public	increased	20,674.67	100
The prelude	01/21/1970	public	increased	20,674.58	100
Lyrical Ballads	01/21/1970	public	increased	20,674.61	100
DIARIO DE ANA FRANK	01/20/1970	no_ebook	increased	20,675.78	100
Poems	01/21/1970	public	increased	20,674.63	100
Luces de bohemia	01/21/1970	borrowable	increased	20,674.55	100
Famous Modern Ghost Stories	01/21/1970	public	increased	20,674.55	100