The film won the second Academy Award for best picture, and was the first musical to do so. His jail sentence began May 6. Hoover appoints the National Commission on Law Observance and Enforcement to study Prohibition's effect on the rising crime rate. Supreme Court Justice Oliver Wendell Holmes, in a famous dissent, argues that the freedom to hold and speak unpopular ideas is a key right under the U.S. constitution.
Laboratories makes first U.S. public demonstration of color television, in New York.
Images are roses and a U.S. flag. Gen. James Doolittle makes the first airplane flight piloted only by radio-controlled instruments. The crash, combined with other negative factors in the U.S. and world economies, very decisively brings to an end the decade of the 1920s and hastens the Great Depression. Construction begins on the Empire State Building. Margaret Sanger's birth control clinic is raided.