"Coolidge was the last president to write all of his own speeches." Not so "Silent Cal" after all! Calvin Coolidge became president after Warren Harding's sudden death in 1923. The Calvin Coolidge Presidential Foundation and Library of Congress mark the centennial of the 30th president's ascension to office with a conference on his political development, signature economic policies, and legacy. Watch, starting at 3:15pm ET, Saturday on C-SPAN 2 | American History TV

How would Calvin Coolidge feel about governance today? Historians discuss the 30th president, compare his policies with todays, and how his administration navigated the 1920s. Watch the entire conference this Saturday starting at 3 PM ET on C-SPAN 2 and online at c-span.org/history | American History TV

1.1K views · 13 reactions | On August 10, 1927, President Calvin Coolidge rode a horse to the 1927 Mount Rushmore site dedication. In this archive footage, Coolidge spoke at the event and presented sculptor Gutzon Borglum with an armload of steel drill bits, officially launching the start of the excavation and carving of the monument. | SDPB | Facebook