 During over a century of history, Rainbow City was home to some of Panama Canal's teachers, workers, and athletes.During the French canal construction era, in the 1880s, the area occupied by Rainbow City today showed up in maps as a little settlement called Guava Ridge.By the time the United States acquired the rights to build the Canal in 1904, the area included a settlement at Folks River (called “Fox” River up to 1915), which consisted of “small, portable houses put up by the French and in bad condition,” and “24 main buildings in three rows,” between the railroad shops and the main line.