Over 100 years ago, on June 20, 1923, President Warren G. Harding embarked on an ambitious journey across North America called the “Voyage of Understanding.” However, on August 2, 1923, in San Francisco, he unexpectedly died of a suspected heart attack and never completed his journey back to the White House. Learn more about his trip—and its fateful end—in today’s video. | The White House Historical Association