1270
year
Year 1270 (MCCLXX) was a common year starting on Wednesday of the Julian calendar, the 1270th year of the Common Era (CE) and Anno Domini (AD) designations, the 270th year of the 2nd millennium, the 70th year of the 13th century, and the 1st year of the 1270s decade.
Events
Africa
The Eighth Crusade
Before August – King Louis IX of France launches the Eighth Crusade, in an attempt to recapture the Crusader States from the Mamluk sultan Baibars; the opening engagement is a siege of Tunis.
August 25 – King Louis IX of France dies while besieging the city of Tunis, possibly due to poor quality drinking water.
October 30 – The siege of Tunis and the Eighth Crusade end, through an agreement between Charles I of Sicily (Louis IX's brother) and Muhammad I al-Mustansir, Khalif of Tunis.
Other events
August 10 (10 Nehasé 1262) – Yekuno Amlak overthrows the Ethiopian Zagwe dynasty, claims the imperial throne and establishes the Solomonic Dynasty, which will last until 1974.
Asia
In Korea, the Sambyeolcho Rebellion begins against the Goryeo dynasty, a vassal state of the Yuan dynasty.
The ancient city of Ascalon is captured from the Crusader States, and utterly destroyed by the Mamluk sultan Baibars, who goes so far as to fill in its important harbor, leaving the site desolate, and the city never to be rebuilt.
The city of Tabriz, in present-day Iran, is made capital of the Mongol Ilkhanate Empire (approximate date).
The independent state of Kutch is founded, in present-day India.
A census of the Chinese city of Hangzhou establishes that some 186,330 families reside within it, not including visitors and soldiers (Historian Jacques Gernet argues that this means a population of over 1 million inhabitants, making Hangzhou the most populous city in the world).
Begin with the source’s own compact description: “1270” is year. The dossier treats that line as a proposition to test through year, not as a finished interpretation.
Why this record matters
The phrase “year” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Jul 4, 2026. The linked authority identifier is Q5522. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1270, 1262 and 1974.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “1270”, its source revision and the description used here.
- Expand the search: follow 1270 primary sources, 1270 archive and year research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “1270”?
- Which cited source is closest to the event, object or claim?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “1270” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.