Which three sentences contain supporting details that should be included in a summary of this informational text? Route 66 adapted from the National Park Service US Highway 66—popularly known as Route 66—holds a special place in American consciousness. Its name provides images of simpler times, small businesses, and the icons of a mobile nation on the road. Travelers on Highway 66 today can easily experience this past through the many motels, gas stations, cafés, trading posts, and roadbeds that remain along the highway. Route 66 had its official beginnings in 1926, when the nation's first federal highway system was launched. The highway quickly became a popular route because of active promotion and advertisements. It was sold as "the shortest, best, and most scenic route from Chicago through St. Louis to Los Angeles." Business owners in small and large towns along the highway looked to Route 66 as an opportunity for attracting new customers to their often rural and isolated communities. Even through tough times, the road helped promote economic opportunities by allowing people to travel to different places for work and by providing employment at the commercial centers along it. In 2008, the significance of Route 66 and the importance of preserving it were again recognized when Route 66 was listed on the "Watch List of 100 Most Endangered Sites." The spirit of Route 66 lives in the people and their stories, the views and buildings, and travelers' perceptions of the highway