Who is the cKay?

Which group of barbarian invaders at one time controlled part of italy and formed a kingdom in southern france, and were forced into spain by the franks?

According to the article in wiki answer, digital communication systems have more benefits than analog systems. they are faster and more flexible, and they offer better performance than analog communication

Which artist is often considered the leader of the hudson river school and poignantly set up contrast between the cultivated east and the wild west in the united states?