Why do Vikings connect to modern explanations?

Here is how the Vikings influensed us today.

They changed the European economy, developed market towns, and implemented the concept of currency. It is without a doubt that without the Vikings developing the concept of currency, the modern world would not be the place it is today.

Explanation:

living during the great depression had a major affect on the mentality many people. a good portion of people who lived during that time do not trust banks. this is likely the result of the many widespread bank failures in the 30s that caused people to lose their life savings.