Who were the first group of Europeans to touch
American soil?

Norse from west Greenland

Explanation:

The first Europeans to arrive in North America -- at least the first for whom there is solid evidence -- were Norse, traveling west from Greenland, where Erik the Red had founded a settlement around the year 985.

Before Columbus they say maybe vikings were the first to touch american soil.But most say Columbus did first.

Explanation:

When the Union forces controlled the Mississippi River, it ruined the chances of the Confederacy winning. One of the reasons why it ruined the Confederates chances was because the Mississippi River was the water route that the Confederates used in order to send supplies and soldiers. This meant they could no longer get new supplies to the Confederate soldiers. Along with this, it split the Confederacy in half. This meant that the Confederate soldiers in different states could not communicate very easily.