Recognized by convention as the `` Birthplace of US Route 66 '' , it was in Springfield on April 30 , 1926 that officials first proposed the name of the new Chicago-to-Los Angeles highway .
Springfield is called the `` Birthplace of U.S. Route 66 '' . It was in Springfield on April 30 , 1926 that officials first proposed the name of the new Chicago-to-Los Angeles highway .