The government began licensing radio stations and regulating the frequency bands on which they broadcast. Local entertainment stations were limited to the Medium Wave band, from 500 to 1650 Kilocycles (kilohertz).
Albert Einstein came to the U.S. to lecture at Columbia University about his theory of relativity.
Frank Zuna of New York City won the silver anniversary edition of the Boston Marathon.
The U.S. Post Office issued stamps commemorating the tercentennial of the pilgrims landing at Plymouth, Massachusetts.
The first sponsored orchestral radio program was The A&P Gypsies.
The first Miss America pageant was held in Atlantic City, New Jersey.
Edison Records released When Johnny Comes Marching Home by the first-recorded female trumpet player, Edna White.
