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U.S. Route 66 - Wikipedia
Route 66 | Construction, Popular Culture, & Facts | Britannica
History of Route 66
The History of Route 66 - Oxford Research Encyclopedias
1. Route 66 Overview - U.S. National Park Service
Route 66 History – National Historic Route 66 Federation
2. Before 1926: The Origins of Route 66 - U.S. National Park Service
Route 66 History - National Trails Office - Regions 6, 7, 8 (U.S ...
Route 66: The Mother Road - National Geographic
The Allure of Historic Route 66 | Scenic America