Share This Article 1. During World War Two, Sweden returned hundreds of interned Allied airmen in exchange for this. Interned Swedish citizens Trading rights across the Baltic Sea $1000 in gold per airman Ten B-17 bombers 2. The first monument memorializing a Civil War battle was built in this year. 1890 1865 1888 1914 3. This was the first submarine adopted for use by the U.S. Navy. USS Alligator USS Duck USS Nautilus USS Turtle Loading …