753-844 By Fiona Chen Feb 6, 774 Charlemagne conquers the kingdom of the Lombards, and takes title king of the Lombards Feb 6, 777 Charlemagne defeats the Saxons; their leader Widukind flees to Denmark Mar 2, 2022 Widukind are many other Saxons are baptized Mar 2, 2022 The second Council of Nicaea ends the first iconclastic period in the Byzantine Empire Mar 2, 2022 Charlemagne conquers Bavaria Mar 2, 2022 The Avars invade Europe again, but are defeated by Charlemagne