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 Professor's House	01/21/1970	public	increased	20,674.57	100
Bruegel	01/21/1970	public	increased	20,674.58	100
Bonnes	01/21/1970	public	increased	20,674.62	100
The troll garden	01/21/1970	public	increased	20,674.57	100
My mortal enemy	01/21/1970	public	increased	20,674.57	100
Youth and the bright Medusa	01/21/1970	public	increased	20,674.57	100
The history of human marriage	01/21/1970	public	increased	20,674.63	100
One of Ours	01/21/1970	public	increased	20,674.55	100
The Song of the Lark	01/21/1970	public	increased	20,674.57	100
The footsteps at the lock	01/21/1970	borrowable	increased	20,674.64	100
Death Comes for the Archbishop	01/21/1970	public	increased	20,674.56	100
History of the Decline and Fall of the Roman Empire Complete and Unabridged	01/21/1970	public	increased	20,674.59	100
The Big Bow Mystery	01/21/1970	public	increased	20,674.56	100
The melting-pot	01/21/1970	public	increased	20,674.56	100
Children of the Ghetto	01/21/1970	public	increased	20,674.66	100
Magic and witchcraft	01/21/1970	public	increased	20,675.02	100
Cinna	01/21/1970	public	increased	20,674.55	100
Horace	01/21/1970	public	increased	20,674.56	100
Polyeucte	01/21/1970	public	increased	20,674.63	100
An introduction to anthropology	01/21/1970	public	increased	20,674.63	100
Theorie der wirtschaftlichen Entwicklung	01/21/1970	borrowable	increased	20,674.6	100
De jure belli ac pacis libri tres	01/21/1970	public	increased	20,674.56	100
De veritate religionis Christianae	01/21/1970	public	increased	20,674.63	100
Vite de' più eccellenti pittori, scultori et architettori	01/21/1970	public	increased	20,674.57	100
On the Street Where You Live	01/21/1970	borrowable	increased	20,674.55	100
Sandro Botticelli	01/21/1970	public	increased	20,674.63	100
Langage et la pensée chez l'enfant	01/21/1970	printdisabled	increased	20,674.66	100
Représentation du monde chez l'enfant	01/21/1970	public	increased	20,674.63	100
Logische Untersuchungen	01/21/1970	public	increased	20,674.66	100
Macbeth, Cloth, It	01/21/1970	public	increased	20,674.62	100
Falstaff	01/21/1970	public	increased	20,674.61	100
Aïda	01/21/1970	public	increased	20,674.69	100
Rigoletto	01/21/1970	public	increased	20,674.63	100
La traviata	01/21/1970	public	increased	20,674.62	100
Un chico y una chica	01/21/1970	no_ebook	increased	20,674.66	100
Plays (37)	01/21/1970	public	increased	20,674.56	100
Opera	01/21/1970	public	increased	20,674.57	100
The Library of American Biography	01/21/1970	public	increased	20,674.72	100
Amedeo Modigliani	01/21/1970	borrowable	increased	20,674.58	100
Medico-Chirurgical Transactions	01/21/1970	public	increased	20,674.63	100
Alice in Wonderland in Five Acts	01/21/1970	public	increased	20,674.75	100
Mitteilungen des Deutschen Archäologischen Instituts, Athenische Abteilung	01/21/1970	public	increased	20,674.63	100
The Adventures of Caleb Williams	01/21/1970	public	increased	20,674.57	100
Call Mr. Fortune	01/21/1970	public	increased	20,674.68	100
The American Ephemeris and Nautical Almanac	01/21/1970	public	increased	20,674.64	100
The Life and Adventures of Nicholas Nickleby	01/21/1970	public	increased	20,674.63	100
The Monk: A Romance. In Three Volumes. By M. G. Lewis, ..	01/21/1970	public	increased	20,674.64	100
Elegiae	01/21/1970	public	increased	20,674.62	100
The Life of Nelson	01/21/1970	public	increased	20,674.63	100
The Eye of Osiris	01/21/1970	public	increased	20,674.55	100