Fracking or hydraulic fracturing is a method utilized by oil and gas companies to increase production of oil or gas from a well that would otherwise exhibit a low flow rate usually due to the geologic rock formation being too dense to allow for the economic recovery of hydrocarbons.
The Vikings lived in Scandinavia (mainly Norway, Sweden and Denmark), and in Iceland. They ventured (and proliferated) as far as Italy and the Mediterranean, but more commonly sailed to Ireland, Northern France, England, and even North America. Norway, Sweden, Denmark.
The Vikings were the people who came from Scandinavia (Denmark, Norway, and Sweden) from about AD 700 to about 1125. This period is called the Viking Age. Vikings traveled great distances in their longships, as traders, settlers and warriors. Many of the Vikings were tall and had red or blonde hair and beards.