Subject heading
Calendar reform
3 books carry this heading. It is a source-library term, kept as recorded; related traditions and headings below are drawn from co-occurrence, not editorial judgment.
Related traditions
Related subjects
- 18th century1
- Almanacs, English1
- Ancient Civilization1
- Ancient Geography1
- Ancient History1
- Ancient Philosophy1
- Astrology1
- Astronomie1
- Astronomy1
- Calendrier1
- Children's stories1
- Chronologie historique1
- Chronology1
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- Civilisation ancienne1
- Civilization1
- Diligence1
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- Étude et enseignement1
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Books
Open in Browse3 books
Era
