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