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