1921 Served as Secretary of Commerce in the Cabinets of President Harding and Coolidge. The most popular sandwich for people under 12 was peanut butter and jelly. 1923 Established American Child Health Association. 1924 Chairman, Street and Highway Safety Commission. A new dance craze swept the nation called the Charleston.
Radio comes into popular use in the United States.
1927 Spoke and was pictured on first transmission of television signals from New York to Washington. Hoover elected President of the United States. Served as 31st President of the United States. Made good will tour of Latin America after the election. 1929 Stock market crashed.