July 20
date
July 20 is the 201st day of the year (202nd in leap years) in the Gregorian calendar; 164 days remain until the end of the year.
Events
Pre-1600
70 – Siege of Jerusalem: Titus, son of emperor Vespasian, storms the Fortress of Antonia north of the Temple Mount. The Roman army is drawn into street fights with the Zealots.
514 – Consecration of pope Hormisdas following the death of pope Symmachus the previous day.
792 – Kardam of Bulgaria defeats Byzantine Emperor Constantine VI at the Battle of Marcellae.
911 – Rollo lays siege to Chartres.
1189 – Richard I of England officially invested as Duke of Normandy.
1230 – Treaty of San Germano is signed at San Germano between Holy Roman Emperor Frederick II and Pope Gregory IX. A Dominican named Guala is responsible for the negotiations.
1398 – The Battle of Kellistown was fought on this day between the forces of the English led by Roger Mortimer, 4th Earl of March against the O'Byrnes and O'Tooles under the command of Art Óg mac Murchadha Caomhánach, the most powerful Chieftain in Leinster.
1592 – During the first Japanese invasion of Korea, Japanese forces led by Toyotomi Hideyoshi captured Pyongyang, although they were ultimately unable to hold it.
“July 20” enters the record as date. Crown Archives preserves that source wording while asking what July and date can confirm, complicate or overturn.
Why this record matters
“July 20” is worth following because a concise public description often conceals a longer documentary argument. Here, July and date provides the most credible route into that argument.
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 Sep 5, 2026. The linked authority identifier is Q2728. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1600, 1189, 1230 and 1398.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. 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 “July 20” 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.