+**1240** was a year of profound change, especially across Eurasia. The [Mongol Empire](/wiki/Mongol_Empire) continued its westward expansion, most notably with the devastating [Siege of Kiev](/wiki/Siege_of_Kiev), irrevocably altering the course of Eastern European history. This era saw shifts in power and the enduring impact of imperial ambitions.
+## See also
+- [Middle Ages](/wiki/Middle_Ages)
+- [Kyivan Rus](/wiki/Kyivan_Rus)
+- [Mongols](/wiki/Mongols)
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