June 1
| 1909 | An OPR exhibit, including its first use of dioramas, at the Alaska-Yukon-Pacific Exposition in Seattle, WA, proves especially popular. When the exposition ends on October 16, the exhibit is shipped to Nebraska for the Corn Show and Omaha Exposition, then to the District of Columbia for the Builders' Exchange Exhibit Company, and later to Knoxville, KY, for the Appalachian Exposition. The exhibit is duplicated and exhibited in over 100 places through 1917 and seen by over 2.5 million people.
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| 1934 | The BPR exhibit at the Century of Progress Exposition in Chicago, IL, includes changing maps and dioramas showing the progress of highway development in the United States from 1792 to the present. The history begins in 1792 with authorization of the Lancaster Turnpike in Pennsylvania, the best highway of its day, and ends, according to The Highway Magazine, with "an ultra- modern four-lane highway of 1933, with its bus stations at a grade-separated highway intersection, and its bordering sidewalks and landscape treatment. This type of thoroughfare [is] the supreme development of the cooperative work of engineers of the State highway departments and the Bureau of Public Roads." | |
| 1973 | Secretary of Transportation Claude Brinegar administers the oath of office to Administrator Norbert "Nobby" Tiemann. |
