Vikings are cool I wish I got to meet one!
Well they  were Norse seafarers, mainly speaking the Old Norse language.
Cool when did Vikings first start to exist?
Well they come from Northern European homelands across wide areas of northern, central, eastern and western Europe, during the late 8th to late 11th
Did they have any wars with any other peoples?
They love to fight and raid. but the term Viking also is used to just describe a single person from the viking age.
Why are the Minnesota Vikings named after them?
Im not sure why they picked the name but maybe its because they live in Minneapolis, Minnesota.
Do you know of any particularly famous Vikings?
Im not sure since they were more of a unit. But facilitated by advanced sailing and navigational skills they traveled great distances to raid and pillage .