Interracial marriage
From AD 839, Viking Varangian mercenaries who were in the service of the Byzantine Empire, notably Harald Sigurdsson, campaigned in North Africa, Jerusalem and other places in the Middle East during the Byzantine-Arab Wars. They interbred with the local population as spoils of warfare or through eventual settling with many Scandinavian Viking men taking Arab or Anatolian women as wives. There is archaeological evidence the Vikings had established contact with the city of Baghdad, at the time the center of the Islamic Empire, and connected with the populace there. Regularly plying the Volga with their trade goods (furs, tusks, seal fat, seal boats and notably female slaves; the one period in the history of the slave-trade when females were priced higher than males), the Vikings were active in the Arab slave trade at the time. These slaves, most often Europeans that were captured from the coasts of Europe or during war periods, and sold to Arabic traders in Al-Andalus and the Emirate of Sicily.
Viking metal
Viking metal features the Vikings as its subject matter and for evocative imagery. The Vikings were Northern European seafarers and adventurers who, during the Middle Ages, relied on sailing vessels such as longships, "knerrir", and "karvi" to explore, raid, pirate, trade, and settle along the North Atlantic, Baltic, Mediterranean, Black Sea, and Caspian coasts and Eastern European river systems. The Viking Age is generally cited as beginning in 793, when a Viking raid struck Lindisfarne, and concluding in 1066, with the death of Harald Hardrada and the Norman conquest of England. During this two-hundred-year period, the Vikings ventured west as far as Ireland and Iceland in the North Atlantic and Greenland and what is now Newfoundland in North America, south as far as the Kingdom of Nekor (Morocco), Italy, Sicily, and Constantinople in the Mediterranean, and southeast as far as what are now Belarus, Russia, and Ukraine in Eastern Europe, Georgia in the Caucasus, and Baghdad in the Middle East.