This is just the beginning! Our collection holds over 300 years of history, including rare newspapers, obituaries, marriage records, birth records, and so much more—most of which you won’t find anywhere else!
Highway numbering system created in 1957
The U S highway grid was devised in 1957 by the American Association of State Highway and Transportation Officials and the Bureau of Public Roads. Eisenhower supported the plan, assigning one or two digit numbers to major routes and three digits to connectors. North south routes take odd numbers and rise west to east, while east west routes use even numbers rising from south to north.
MENTIONED IN THIS ARTICLE
United States
American Association of States Highway and Transportation Officials
Bureau of Public Roads
Dwight Eisenhower