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
Self-knowledge	01/21/1970	public	increased	20,674.63	100
Astoria	01/21/1970	public	increased	20,674.63	100
A history of New York	01/21/1970	public	increased	20,674.55	100
Rip Van Winkle and Sleepy Hollow	01/21/1970	public	increased	20,674.58	100
The sketch-book of Geoffrey Crayon, Esq	01/21/1970	public	increased	20,674.58	100
The works of Washington Irving	01/21/1970	public	increased	20,674.59	100
Bracebridge Hall	01/21/1970	public	increased	20,674.62	100
Columbus	01/21/1970	public	increased	20,674.61	100
The conquest of Granada	01/21/1970	public	increased	20,674.61	100
Oliver Goldsmith	01/21/1970	public	increased	20,674.6	100
Old Christmas	01/21/1970	public	increased	20,674.56	100
The Legend of Sleepy Hollow	01/21/1970	public	increased	20,674.63	100
Compleat angler	01/21/1970	public	increased	20,674.59	100
Life of George Washington	01/21/1970	public	increased	20,674.63	100
Rip Van Winkle	01/21/1970	public	increased	20,674.68	100
The Alhambra	01/21/1970	public	increased	20,674.61	100
When I Was Young in the Mountains	01/21/1970	borrowable	increased	20,674.79	100
The Purple Cloud	01/21/1970	borrowable	increased	20,674.6	100
Narodnye russkie skazki	01/21/1970	public	increased	20,674.58	100
Crome yellow	01/21/1970	public	increased	20,674.61	100
The black camel	01/21/1970	public	increased	20,674.81	100
Fifty Candles	01/21/1970	printdisabled	increased	20,674.55	100
Behind that curtain	01/21/1970	public	increased	20,674.56	100
Love Insurance	01/20/1970	public	increased	20,675.25	100
The Chinese parrot	01/21/1970	public	increased	20,674.67	100
Seven keys to Baldpate	01/21/1970	public	increased	20,674.68	100
The house without a key	01/21/1970	public	increased	20,674.63	100
Those barren leaves, a novel	01/21/1970	public	increased	20,674.69	100
The Columbian Orator	01/21/1970	public	increased	20,674.59	100
Folk beliefs of the southern Negro	01/21/1970	public	increased	20,674.67	100
The betrothed lovers	01/21/1970	public	increased	20,674.56	100
Eyeless in Gaza	01/21/1970	printdisabled	increased	20,674.65	100
Point Counter Point	01/21/1970	public	increased	20,674.64	100
Antic Hay	01/21/1970	public	increased	20,674.69	100
Der Hypnotismus	01/21/1970	public	increased	20,674.66	100
The book of Indian crafts & Indian lore	01/21/1970	public	increased	20,674.72	100
Nils Holgerssons underbara resa genom Sverige	01/21/1970	public	increased	20,674.57	100
Hymns for infant minds	01/21/1970	public	increased	20,674.63	100
Arkham Asylum	01/21/1970	borrowable	increased	20,674.55	100
David Blaize	01/21/1970	public	increased	20,674.73	100
The Blotting Book	01/21/1970	public	increased	20,674.74	100
Miss Mapp	01/21/1970	public	increased	20,674.67	100
Queen Lucia	01/21/1970	public	increased	20,674.57	100
Laws, etc. (Session laws : 1754 May)	01/21/1970	public	increased	20,674.6	100
The Gettysburg Address	01/21/1970	public	increased	20,674.71	100
The gentle art of making enemies	01/21/1970	public	increased	20,674.58	100
Faust	01/21/1970	public	increased	20,674.63	100
Leviathan	01/21/1970	public	increased	20,674.61	100
Human nature	01/21/1970	printdisabled	increased	20,674.66	100
Beautiful Joe	01/21/1970	public	increased	20,674.81	100