It was the way out. Invented on the cusp of the depression, Route 66 was the road out of the mines, off the farm, away from troubled Main Street. It was the road to opportunity. Between 1926 and 1956, many people from the southern and plains states trekked west to California on Route 66, the Mother Road. Some never reached California. Instead, they settled along the road, building restaurants, tourist attractions, gas stations, and motels. The...