What lead to the growth of Detroit? *

The expansion of the auto industry nearly a century ago fueled a growth spurt that made Detroit the fourth largest city in the country. By 1950, the population peaked at almost 1.85 million as people moved to Detroit to work at the Big Three auto companies: Ford, General Motors and Chrysler.

The expansion of copper

napoleon the third became a empire in 1873 also known as the era of the franco-prussian war.