Editing 1079 (section)

== Events ==
<onlyinclude>

=== By place ===

==== Europe ====
* [[April 11]] &ndash; [[Stanislaus of Szczepanów]], bishop of [[Roman Catholic Archdiocese of Kraków|Kraków]], is executed on orders by King [[Bolesław II the Generous]]. The way in which his sentence is carried out causes a revolt among the Polish nobles. Bolesław is forced to flee, to take refuge at the court of King [[Ladislaus I of Hungary]]. He is succeeded by his brother [[Władysław I Herman|Władysław I]], as ruler of [[Kingdom of Poland (1025–1385)|Poland]].<ref>Richard Brzezinski (1998). ''History of Poland: The successors of Bolesław the Brave'', p. 19. {{ISBN|83-7212-019-6}}.</ref>
* [[Battle of Cabra]]: Moorish forces, aided by Castilian knights under [[El Cid]] (Rodrigo Diaz), defeat and rout the invading army of Emir [[Abdallah ibn Buluggin]] of [[Taifa of Granada|Granada]], near the town of [[Cabra, Spain|Cabra]] (modern [[Spain]]).
* Emperor [[Henry IV, Holy Roman Emperor|Henry IV]] appoints [[Frederick I, Duke of Swabia|Frederick I]] as duke of [[Duchy of Swabia|Swabia]] at [[Hohenstaufen Castle]]. Henry's 7-year-old daughter [[Agnes of Waiblingen]] is betrothed to Frederick who founds the [[Hohenstaufen|Hohenstaufen Dynasty]]. 
* Upon the death of [[Håkan the Red]], [[Halsten Stenkilsson]] returns as king of [[Sweden]], jointly with his brother [[Inge the Elder]] (approximate date).

==== England ====
* King [[William the Conqueror]] establishes the [[New Forest]] in [[Southern England]]. He proclaims it as a [[royal forest]], using it for [[hunting]], mainly of [[deer]].<ref>{{cite web |title=Take a stroll through a piece of old England |url=https://www.independent.co.uk/travel/uk/take-a-stroll-through-a-piece-of-old-england-24424.html |archive-url=https://ghostarchive.org/archive/20220501/https://www.independent.co.uk/travel/uk/take-a-stroll-through-a-piece-of-old-england-24424.html |archive-date=May 1, 2022 |url-access=subscription |url-status=live |website=The Independent |date=December 12, 2004 |access-date=28 July 2018}}{{cbignore}}</ref>

==== Seljuk Empire ====
* The [[Seljuq dynasty|Seljuk Turks]] under Sultan [[Suleiman ibn Qutulmish]] reach and occupy the western coast of [[Anatolia|Asia Minor]], an area known since the [[Archaic Greece|Archaic Period]] (c. 800–c. 500 BC) as [[Ionia]] (modern [[Turkey]]).<ref>Brian Todd Carey (2012). ''Road to Manzikert: Byzantine and Islamic Warfare (527–1071)'', p. 159. {{ISBN|978-1-84884-215-1}}.</ref>

=== By topic ===

==== Astronomy ====
* [[Omar Khayyam]], Persian [[Mathematics in medieval Islam|mathematician]] and [[Astronomy in the medieval Islamic world|astronomer]], calculates a 33 year calendar consisting of 25 ordinary years that include 365 days, and 8 leap years that include 366 days, the most accurate calculation of his time. Khayyam, in his ''Treatise on Demonstrations of Problems in Algebra'', produces a complete classification of cubic equations and their geometric solutions (approximate date).

==== Religion ====
* [[Constance of Burgundy|Constance]], queen of [[Kingdom of Castile|Castile]] and [[Kingdom of León|León]], founds a [[monastery]] in [[Burgos]] (approximate date).</onlyinclude>