Blog Posts Science Service, Up Close: Radio Extends the Audience, Inauguration Day, 1925 January 19, 2017 by Marcel Chotkowski LaFollette President Calvin Coolidge's second inauguration in 1925 reaches an audience of millions, thanks to a new technological innovation--the radio. The Oval Office meets the Castle: Presidents at the Smithsonian November 8, 2016 by Hillary Brady Produced by the Smithsonian Institution Archives. For copyright questions, please see the Terms of Use.