Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page 1270:

This text has been unreferenced on Wikipedia for a very long time. If you can't find a source, be bold and remove it!

"
  • February 16 – Livonian Crusade - Battle of Karuse: The Grand Duchy of Lithuania defeats the Livonian Order decisively, on the frozen surface of the Baltic Sea.[11]
  • September 1 – King Stephen V of Hungary writes his walk to the antiquum castellum near Miholjanec, where the Sword of Attila has been recently discovered.[citation needed]
  • December – Crucial aspects of the philosophy of Averroism (itself based on Aristotle's works) are banned by the Roman Catholic Church, in a condemnation enacted by papal authority at the University of Paris.[12]