On This Day

Battle of Qatwan [Samarkand]: Seljuqs are defeated by a Kara-Khitan army, signaling the beginning of the end of the Grea

Battle of Qatwan [Samarkand]: Seljuqs are defeated by a Kara-Khitan army, signaling the beginning of the end of the Great Seljuk Empire

Battle of Qatwan [Samarkand]: Seljuqs are defeated by a Kara-Khitan army, signaling the beginning of the end of the Great Seljuk Empire

Events Before

  1. Godfried II the Young becomes Duke of Brabant

    Godfried II the Young becomes Duke of Brabant

  2. Second Lateran Council (10th ecumenical council) opens in Rome

    Second Lateran Council (10th ecumenical council) opens in Rome

  3. Battle of Ourique: Afonso Henriques (later Afonso I of Portugal) defeats Moors

    Dom Afonso I nicknamed "the Conqueror" (Portuguese: O Conquistador), "the Founder" (O Fundador) and "the Great" (O Magno) by the Portuguese, was the first king of Portugal, from 26 July 1139 until...

  4. French scholar Peter Abelard is found guilty of heresy

    French scholar Peter Abelard is found guilty of heresy

  5. Hartbert becomes bishop of Utrecht

    Hartbert becomes bishop of Utrecht

Events After

  1. Possible date for establishment of the Iroquois (Haudenosaunee) League [disputed date - other research places date betwe

    Possible date for establishment of the Iroquois (Haudenosaunee) League [disputed date - other research places date between 1450 and 1660]

  2. Wrongful execution of noted Song Dynasty General Yue Fei

    Yue Fei, courtesy name Pengju (鵬舉), was a Chinese military general of the Song dynasty and is remembered as a patriotic national hero, known for leading its forces in the wars in the 12th century...

  3. Treaty of Shaoxing ratified with Chinese southern Song Dynasty agreeing to pay tribute to northern Jin dynasty

    Treaty of Shaoxing ratified with Chinese southern Song Dynasty agreeing to pay tribute to northern Jin dynasty

  4. Cardinal Guido elected Pope Coelestinus II

    Cardinal Guido elected Pope Coelestinus II

  5. King Alfonso VII of Leon recognises Portugal as a Kingdom

    Alfonso VII (1 March 1105 – 21 August 1157), called the Emperor (el Emperador), became the King of Galicia in 1111 and King of León and Castile in 1126.

More from the 1140s

Frequently Asked Questions

What happened on September 8, 1141?
Battle of Qatwan [Samarkand]: Seljuqs are defeated by a Kara-Khitan army, signaling the beginning of the end of the Great Seljuk Empire

Explore More