The Roman provinces maintained trade routes and relations with native tribes in Denmark, and Roman coins have been found in Denmark as well. 
 Unfortunately, I do not have information regarding Denmark's etymology, but I do have political facts. Following World War II, Denmark ended its two hundred year-long policy of neutrality. 
 Wow! Can you tell me about the history? 
 Tell me more about that please! 
 That's cool! Can you tell me more?
The Roman provinces maintained trade routes and relations with native tribes in Denmark, and Roman coins have been found in Denmark as well.