Inter Gravissimas
Inter Gravissimas is a papal bull issued by Pope Gregory XIII on February 24, 1582, that reformed the Julian calendar. This reform led to the establishment of the Gregorian calendar, which aimed to restore the timing of Easter and seasonal events. The document outlines necessary adjustments to ensure the accurate calculation of Easter dates and the alignment of the calendar with the vernal equinox.
- ▪The papal bull was issued to reform the Julian calendar.
- ▪It aimed to restore the timing of Easter and seasonal events to their proper places.
- ▪The Gregorian calendar is now used in most countries, regardless of religious orientation.
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Record
| Original publisher | Wikipedia |
| Canonical URL | https://en.wikipedia.org/wiki/Inter_gravissimas |
| Publication time | Mon, 18 May 2026 21:50:47 +0000 |
| Retrieval time | 2026-05-18T22:04:56.986Z |
| Last seen | 2026-05-18T22:04:56.986Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | None |
| Cluster logic | Not yet clustered, or no peer story found in the clustering window. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Toggle the table of contents Inter gravissimas 17 languages CatalàČeštinaDeutschΕλληνικάEspañolFrançaisItalianoLatinaNederlandsNorsk bokmålPolskiPortuguêsRomânăРусскийSlovenščinaУкраїнська中文 Edit links ArticleTalk English ReadEditView history Tools Tools move to sidebar hide Actions Read Edit View history General What links hereRelated changesUpload filePermanent linkPage informationCite this pageGet shortened URL Print/export Download as PDFPrintable version In other projects WikisourceWikidata item Appearance move to sidebar hide From Wikipedia, the free encyclopedia Papal document that established the Gregorian calendar The first page of the papal bull Inter Gravissimas Inter gravissimas (English: "Among the most serious...") was a papal bull issued by Pope Gregory XIII on 24 February…
Excerpt limited to ~120 words for fair-use compliance. The full article is at Wikipedia.
