Share This Article 1. During World War Two, Sweden returned hundreds of interned Allied airmen in exchange for this. Ten B-17 bombers Interned Swedish citizens $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 Nautilus USS Turtle USS Alligator USS Duck 3. The first monument memorializing a Civil War battle was built in this year. 1914 1888 1890 1865 Loading …