Ferdinand I reunites Castile and Leon
1037
The king of Castile defeated and killed his brother-in-law Bermudo III of Leon at the Battle of Tamaron, claiming the Leonese throne by his wife's right. The union of the two Christian kingdoms put Ferdinand at the head of the largest Christian polity in Iberia and would fund Reconquista pressure.
Related events
1037Central AsiaScience
Death of Avicenna in Hamadan
1037High Middle Ages
1037East AsiaCulture
Song court sponsors printing of Confucian classics
1037High Middle Ages
1037Southeast AsiaTechnology
Suryavarman I completes expansion of Angkor's hydraulic system
1037High Middle Ages
1036Central AsiaWar
Seljuk Turks take Nishapur
1036High Middle Ages
1039East AsiaWar
Song-Xia War erupts on the northwest frontier
1039High Middle Ages
1040Central AsiaWar
Battle of Dandanaqan
May 23, 1040High Middle Ages