+1145 marked a pivotal year during the [High Middle Ages](/wiki/High_Middle_Ages) in Europe. In this year, [Pope Eugene III](/wiki/Pope) was elected, subsequently issuing the papal bull *Quantum praedecessores*, which initiated the Second Crusade.
+## See also
+- [Second Crusade](/wiki/Second_Crusade)
+- [Crusades](/wiki/Crusades)
+- [Papacy](/wiki/Papacy)
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