||Chief Thomas MacDonald joins President Warren Harding during the dedication of the permanent Zero Milestone ("POINT FOR THE MEASUREMENT OF DISTANCES FROM WASHINGTON ON HIGHWAYS OF THE UNITED STATES") on the Ellipse south of the White House. A marching song, composed for the occasion ("Hail! Hail! The Caravan!"), is performed by the U.S. Army Band.|
|President Warren G. Harding speaks at the Zero Milestone dedication ceremony in Washington, DC.|
"As we shall extend and improve our highways and more and more adapt them to the methods of transportation, we shall strengthen year by year the ties of mutual interest and interdependence which united all our sections."
President Warren G. Harding
June 4, 1923