Ok, here are some quick links and excerpts (I couldn't find my other links at the moment, but these will do):http://www.khazaria.com/khazar-history.html
"Origins. The Khazars were a Turkic people who originated in Central Asia. The early Turkic tribes were quite diverse, although it is believed that reddish hair was predominant among them prior to the Mongol conquests. In the beginning, the Khazars believed in Tengri shamanism, spoke a Turkic language, and were nomadic. Later, the Khazars adopted Judaism, Islam, and Christianity, learned Hebrew and Slavic, and became settled in cities and towns thruout the north Caucasus and Ukraine. The Khazars had a great history of ethnic independence extending approximately 800 years from the 5th to the 13th century. "http://en.wikipedia.org/wiki/History_of_Russia
"Kievan Rus' in the 11th centuryMain article: Kievan Rus
Scandinavian Norsemen, called "Vikings" in Western Europe and "Varangians" in the East, combined piracy and trade in their roamings over much of Northern Europe. In the mid-9th century, they began to venture along the waterways from the eastern Baltic to the Black and Caspian Seas. According to the earliest Russian chronicle, a Varangian named Rurik was elected ruler (konung or knyaz) of Novgorod in about 860, before his successors moved south and extended their authority to Kiev, which had been previously dominated by the Khazars."
David Christian, A History of Russia, Central Asia and Mongolia, Blackwell Publishing, 1998, pp. 286–288. ISBN 0631208143. http://www.geographia.com/russia/rushis02.htm
"The early history of Russia, like those of many countries, is one of migrating peoples and ancient kingdoms. In fact, early Russia was not exactly "Russia," but a collection of cities that gradually coalesced into an empire. I n the early part of the ninth century, as part of the same great movement that brough the Danes to England and the Norsemen to Western Europe, a Scandanavian people known as the Varangians crossed the Baltic Sea and landed in Eastern Europe."http://en.wikipedia.org/wiki/Celts
"The historical Celts were a diverse group of tribal societies in Iron Age Europe. Proto-Celtic culture formed in the Early Iron Age in Central Europe (Hallstatt period, named for the site in present-day Austria). By the later Iron Age (La Tène period), Celts had expanded over a wide range of lands: as far west as Ireland and the Iberian Peninsula, as far east as Galatia (central Anatolia), and as far north as Scotland."
"By the early first millennium AD, following the expansion of the Roman Empire and the Great Migrations (Migration Period) of Germanic peoples, Celtic culture had become restricted to the British Isles (Insular Celtic), and the Continental Celtic languages ceased to be widely used by the sixth century."
"The Celtic languages form a branch of the larger Indo-European family. By the time speakers of Celtic languages enter history around 400 BC (Brennus's attack on Rome in 387 BC), they were already split into several language groups, and spread over much of Central Europe, the Iberian peninsula, Ireland and Britain."http://www.redheads.ie/Origins-Red-Hair.htm
"Red hair is often assumed to have emerged with the Celts, but the gene for redheadedness existed long before the Celts came into being, at the start of the first millennium BC around the headwaters of the Rhine, the Rhone and the Danube. One theory is that red hair arrived in Europe with the Iranic-speaking steppe tribes who lived the areas north of and around the Black Sea from 4,000 years ago to the 6th century. Today, there is a surprising number of redheads in Afghanistan, Iran and the Urals, as well as in Azerbaijan and Georgia. It is possible that this "Iranic" ginger trait was transferred to other populations, including the Celts, whose original hair color was various shades of brown and black in general."http://www.viking.no/e/england/danelaw/index.html
"The Vikings took control of English villages and estates within The Danelaw. Often they established new villages. We know that Vikings did this because of the kinds of names given to the villages they established, and the new names given to existing English villages."