835
year

Year 835 (DCCCXXXV) was a common year starting on Friday of the Julian Calendar.
Events
By place
Europe
Ragnar Lodbrok, a Norse Viking ruler, rises to power. He becomes the scourge of France and England (approximate date).
Vikings raid Ireland on the Kingdom of Munster, at Inis Cathaigh.
Britain
Danish Viking raiders ally with the Cornish, against the rule of Ecgberht, King of Wessex (approximate date).
The Isle of Sheppey (off the northern coast of Kent) is attacked by Vikings.
China
December 14 – Sweet Dew Incident: Emperor Wenzong of Tang plots to free the court from the influence of his palace eunuchs. In the northeast sector of the capital, Chang'an, after the failure of the emperor's chancellor Li Zhongyan to subdue the eunuchs' influence, troops under the eunuchs' command slaughter many officials and other associates.
By topic
Religion
November 1 – Pope Gregory IV promotes the celebration of the feast of All Saints on this day throughout the Frankish Empire.
Births
Ahmad ibn Tulun, Muslim governor (d.
This brief starts where responsible research should: with the source description of “835” as year. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the general reference register because the source frames it as year. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated May 3, 2026. The linked authority identifier is Q23894. None of the 0 selected statements returned an explicit reference.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. 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.
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This entry incorporates text from “835” 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.