"The Danish people were amongst those known as the Vikings during the 8th–11th centuries...."

"The Danish Vikings were most active in Britain, Ireland, France, Spain, Portugal and Italy where they raided, conquered and settled (their earliest settlements included sites in the Danelaw, Ireland and Normandy)...."

Paris was besieged and the Loire Valley devastated during the 10th century. One group of Danes were granted permission to settle in northwestern France under the condition that they defend the place from future attacks. As a result, the region became known as "Normandy" and it was the descendants of these settlers who conquered England in 1066.

In addition, the Danes and Norwegians moved west into the Atlantic Ocean, settling on Iceland, Greenland, and the Shetland Isles. Brief Vikings expeditions to North America around 1000 did not result in any settlements and they were soon driven off by natives....

The Danes were united and officially Christianized in 965 AD by Harald Bluetooth... In retaliation for the St. Brice's Day massacre of Danes in England, the son of Harald, Sweyn Forkbeard mounted a series of wars of conquest against England. By 1014, England had completely submitted to the Danes.

Sweyn Forkbeard... in Denmark, today's "History of" country.