1926day.year
The United States Numbered Highway System is established.
The U.S. Numbered Highway System was created, standardizing highways across the nation.
On November 11, 1926, the American Association of State Highway Officials approved the United States Numbered Highway System.
This plan introduced a coherent numbering scheme for major east–west and north–south roads.
Odd numbers were assigned to north–south routes, and even numbers to east–west routes, simplifying navigation.
The system fostered interstate commerce, boosted automobile travel, and inspired the legendary Route 66.
It laid the groundwork for the later Interstate Highway System, transforming road travel in America.
1926
United States Numbered Highway System