This maybe of interest basically vikings didn't have horned helmets. The swedish vikings sailed up the rivers and mostly settled in the Ukraine area. They were called the Rus an arabic term I believe. Thus it became Russia. They founded the Catholic Orthadox Church to unité the people. Many vikings came from other territoires to be merccenarys for the Byzantine King. They were known as the Vangerian guard being personal body guards to the king and were used as strike forces. In recent years viking artifacts have been excavated I own a bearded axe from the Ukraine. As time went on They asemulated into the slavic culture.