This overview looks at some of the biggest shows and stars to emerge from the early years of radio, including Jack Benny, Bob Hope, Amos & Andy, and The Shadow, with sound clips and stories about how radio became America’s first mass medium, transforming the United States of America from 48 states into a national listening community. To register, please call the library at 708-687-3700 or email kspringer@acornlibrary.org.