Franklin Mint – History of the US – Dedication of Empire State Building- 1931 – 45mm Proof Bronze Medal – Mar 3 – “The Star Spangled Banner” designated as the National Anthem by Act of Congress – May 1 – Empire State Building dedicated – June 20 – President Hoover asks for moratorium on international debts – July 1 – Wiley Post and Harold Gatty complete record world flight.