Louis P. Cain’s new book, Chicago Before the Fire: An Economic History, provides a lucid and readable account of the main drivers of Chicago’s rise from “dismal swamp” to Second City. Arguably, Chicago was America’s fastest-growing city in the nineteenth century. Cain asks why this growth occurred and how residents and officials responded to it.

The book chronicles how Chicago was born from the pursuit of profit—importing the hinterland’s natural resources, processing them into commodities, and then exporting them far and wide. Yet, within this crucible of trade and finance, something more dynamic emerged: a city of millions, home to major businesses and cultural institutions, and an innovation hub.

To provide a theoretical framework, Cain draws on the Location Theory of economist William Dean, Jr., who posited that economic centers arise from three interrelated factors: trade routes, position, and nodality. Trade routes encompass the transportation and communication infrastructure enabling the flow of goods in and out of a location; position involves its economic and geographic convenience for trade; and nodality refers to the emergence of a central point where routes converge and transactions occur.

Though Chicago’s rise as the Midwest’s most important city was shaped by these forces, the question remains: Why did Chicago become the focus of so much investment in the first place? The answer is that Chicago’s destiny was, in many respects, a self-fulfilling prophecy. Chicago was the lowest-lying area between two major drainage basins and their vast waterway systems. With skillful engineering, a vast army of cheap labor, and pools of financing, a channel could connect the East Coast to the Mississippi River and all its navigable tributaries.

Planning started in 1823, and construction began in 1836, but completion was delayed because of the Panic of 1837. Finally, opened in 1848, the Illinois & Michigan (I&M) Canal established Chicago’s nodality. But ironically, while the canal sparked its birth, the railroad made Chicago Chicago. The first lines, which opened in 1848, were short routes connecting the agricultural hinterland to the center. Soon, a vast rail network radiated around the Chicago River. In came the wheat, the animals, and the logs; out went the flour, the beef and hides, and the planks.

Economists often emphasize stocks, flows, financial instruments, and infrastructure investments. But Cain rightly acknowledges the individuals whose ambitions built the city from scratch. In the first chapter, he begins with the fur traders. In 1673, explorers Louis Jolliet and Jacques Marquette first recognized the possibility of connecting the Great Lakes to the Mississippi. Though their vision remained unrealized for a century and a half, the area’s geographic advantages meant it would be an important trading post for decades.

In Chapter 2, “Pioneers and Boosters,” Cain focuses on a handful of early entrepreneurs who helped shape the city. The most notable among them was William Butler Ogden, who, arguably, more than any individual, helped to transform the former glacial lakebed into a thriving town. He was, among other things, a land speculator, an investor in Wisconsin timber forests, a contractor for the I&M Canal, an investor in railroads and steamship lines, the first Mayor of Chicago (1837–1838), and cofounder of the Chicago Historical Society.

The next chapter turns to the portage and the canal. Cain notes that, ironically, if canal construction had stalled before the railroads arrived, Chicago might never have existed. The more logical node would have been at the southern tip of Lake Michigan, a shorter route to the East. But the canal, completed “just in time,” gave Chicago a critical early boost.

Chapter 4 provides a statistical and descriptive portrait of Chicago’s early economic and industrial development, including its trade balances and the composition of its three key industries—grain, meat, and timber. But, as Cain demonstrates, it was also necessary to establish its institutions. After the canal and railroads opened, entrepreneurs soon discovered the benefits of grain elevators. Different qualities of grain would be stored separately, and grain notes would be issued to the farmer as a form of currency. To safeguard quality standards, the Chicago Board of Trade was formed. In the process, the commodity futures market rose, further reducing farmers’ risks and enhancing Chicago’s centrality.

Continuing along with the biographies theme, in Chapter 5, Cain details the key players in Chicago’s second generation, who helped take Chicago to the next level. Most notable were the entrepreneurs who made meat king by creating the stockyards, refrigerated railcars, and meatpacking.

Next, Cain turns to sanitation and health. Chicago’s flatness forced it to confront its health and sanitation problems relatively early. The solution was the brainchild of Ellis Sylvester Chesbrough, who was hired as Sanitation Commissioner in 1855. He spearheaded the plan to raise the grade and install drainage pipes between the old and new grades. However, his plan was not sufficient to cure Chicago of its sanitation problem, eventually leading to the reversal of the Chicago River to carry its waste away from the lake into the Mississippi drainage area.

Chapter 7 turns to the population and demographics of Chicago from 1840 to 1870, documenting the surges of immigrants and the expansion of the Black population. Chapter 8 examines the rise of Chicago’s financial sector, which provided the funds for Chicago’s industries. The final chapter synthesizes how Chicago emerged to be such a crucial node within the American economy.

Placed within the context of books about Chicago’s economic history, Cain’s work nicely complements William Cronon’s Nature’s Metropolis and Homer Hoyt’s One Hundred Years of Land Values in Chicago.