An American photo album, from the Library of Congress

A precursor to sharing ear buds: Josephine Young, of Riverside, Conn., and J.W. Elwood, of New York, demonstrate a portable radio and headphones enabling them to dance a foxtrot while on board the yacht Elettra, during a voyage to Albany, N.Y., June 26, 1922. Young, the daughter of the founder of the Radio Corporation of America, would become a writer and poet, and the first female director of RCA.