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