One moment, please <a href=" http://www.clearofclouds.ch/mexico-essay/ ">overcoming a challenge essay</a> Detroit's first wave of prosperity came after World War I and lasted into the early 1920s, driven by the rise of the auto industry. "It was the Silicon Valley of America," Boyle said. "It was home to the most innovative, cutting-edge dominant industry in the world. The money there at that point was just staggering."