May 2: Austrian police raid headquarters of the Nazi Party in Vienna, finding evidence of collaboration between German and Austrian Nazis, as well as propaganda hostile to the Austrian government.

May 4: The Duke of Windsor and Wallis Warfield (ex-Simpson) reunite in France after six months apart and immediately become officially engaged.

May 6: The Hindenburg disaster occurrs in Lakehurst, New Jersey, killing 36 people. Newsreel footage of the tragedy would be shown around the world, shattering the public's confidence in the dirigible as a method of transportation.

May 7: German aviation minister Hermann Goering orders work rushed on the Graf Zeppelin II, which was to have been the sister ship of the Hindenburg.

May 10: Frozen food comes to Britain when frozen asparagus is on sale for the first time.

May 12: The Coronation of King George VI and Queen Elizabeth takes place at Westminster Abbey in London.

May 15 Born: Madeleine Albright, Czechoslovakian-born American politician and diplomat, in Prague

May 18: Archbishop of Chicago George Mundelein makes an anti-Nazi speech condemning stating "a nation of 60 million intelligent people will submit in fear and servitude" to Hitler, an "alien, an Austrian paper hanger."

May 22: The Soviet Union claims the North Pole as its territory.

May 23: John D. Rockefeller American business magnate and philanthropist dies aged 97.

May 27: The Golden Gate Bridge opens in San Francisco.

May 28: The Volkswagen company is founded. (source: Wikipedia)