Conversation so far:
when did the vikings first come to scotland
By the end of the 9th century the Vikings came to Scotland to raid and settle.
why did the vikings colonize scotland?
Scotland would make perfect base camps for armies to amass and trading posts to flourish.
how long did the vikings colonize scotland
Scandinavian Scotland refers to the period from the 8th to the 15th centuries during which Vikings and Norse settlers colonised parts of what is now the periphery of modern Scotland.

Question: how did the vikings impact the country
Self-contained rewrite: how did the vikings impact scotland