California’s first freeway, Arroyo Seco Parkway, officially opened to traffic.
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Frank Steunenberg, the former governor of Idaho, was assassinated outside his home.
The American drama movie 'Of Mice and Men' was released in the US.
Astronomer Edwin Hubble formally announced the existence of other galactic systems at a meeting of the American Astronomical Society.
The United States bought 45,000 square miles of land from Mexico.
Frank Sinatra first recorded 'My Way,' with lyrics written by Paul Anka based on the French song 'Comme d'habitude.'
