Who was involved in the European Middle Ages and what did they want?

Between 800 and 1000, three groups—the Magyars, the Vikings, and Muslims—invaded Europe. The Magyars, fierce warriors from the east, crossed over land and attacked Europe from Asia. Perhaps the most frightening invaders of all, the Vikings, came from Scandinavia in the north.

east-west schism. the greatest effect of the east-west schism was the creation of two separate churches that had previously been unified under one church, the eastern orthodox church and the roman catholic church.