Cod: A Biography of the Fish That Changed the World (1998) by Mark Kurlansky

I find books about commodities to be oddly satisfying. How have oil, sugar, salt and cotton changed our lives for better and worse? In “Cod: A Biography of the Fish That Changed the World” (1998), Mark Kurlansky combines maritime adventure, culinary anthropology, economic history, and environmental warning into a single compelling narrative about a once strategic commodity that has largely lost its relevance by the 21st century. Like his later work “Salt,” Kurlansky uses a single commodity – in this case, the humble Atlantic cod – as a lens through which to examine sweeping currents of human history. But where salt was essential to the preservation of food, cod itself was food: cheap, abundant, nutritious, and incredibly durable when salted. For centuries, it fueled economies, fed nations, and even drove exploration and colonization (ever heard of Cape Cod?). “Cod” is the story of how a single fish helped shape the modern world.

The book begins with a simple yet arresting premise: much of Western history, from Viking expansion to the American Revolution, can be traced in part to the cod fisheries of the North Atlantic. This fish, once so plentiful that early explorers described being able to scoop them from the sea with baskets, became a vital resource for European societies looking to feed growing urban populations. Cod could be caught in abundance, preserved with salt, and transported across long distances without spoilage. As such, it became a cornerstone of trade between Europe, the Americas, and Africa.

Kurlansky’s narrative unfolds chronologically, but he weaves in thematic explorations that highlight cod’s wide-ranging influence. He begins with the Norse voyages to Newfoundland around 1000 AD, suggesting that the promise of rich fishing grounds may have played a greater role than previously acknowledged in motivating their westward exploration. He then traces the development of cod fishing through the Basque, Portuguese, and English, who established fishing outposts on the Grand Banks off Newfoundland well before permanent colonization of North America. This early economic presence – driven by cod, not conquest – laid the groundwork for European imperialism in the New World.

Cod, Kurlansky argues, was not just a commodity but a driver of global trade. The book explores how cod became a key element in the triangular trade that connected Europe, West Africa, and the Americas. Salted cod from New England and Newfoundland was shipped to the Caribbean to feed enslaved people on sugar plantations, a dark and revealing moment in the history of global capitalism. In exchange, sugar and molasses were transported back to Europe and North America. Cod thus helped to sustain slavery and plantation economies, just as it sustained the diets of Europe’s poor.

One of the book’s more original and provocative insights is the comparison of cod to other staple commodities like sugar, cotton, and even oil. Cod, like sugar, was foundational to colonial economies. Like cotton, it shaped the contours of labor, trade, and geopolitical competition. And like oil, its abundance was once taken for granted – until it was depleted. Cod’s seeming inexhaustibility led to its overexploitation, a pattern that mirrors the fate of so many other natural resources in the industrial age. Kurlansky draws a sharp contrast between the assumptions of early modern abundance and the ecological reality of the late 20th century.

Indeed, environmental decline is one of the book’s most powerful and sobering themes. Kurlansky devotes the final chapters to the collapse of cod fisheries in the 1990s, particularly off the coast of Newfoundland, where centuries of overfishing, combined with new industrial techniques like trawling and sonar tracking, led to a dramatic and sudden crash. Entire communities, built over generations on the promise of the cod, were left without work or purpose. Here, the book transforms from economic and culinary history to an environmental cautionary tale.

Yet Kurlansky is never didactic or heavy-handed. His prose is accessiblevand studded with historical anecdotes and quirky asides. He includes traditional cod recipes from various cultures and provides snapshots of fishermen’s lives from different periods. These culinary interludes, far from distracting, reinforce his central thesis: that cod is not just a fish but a cultural artifact, deeply embedded in the rituals and routines of many civilizations.

A particularly memorable portion of the book involves the political economy of fishery regulation. Kurlansky shows how governments, despite warnings from scientists and fishermen, were slow to act as stocks declined. He documents the failure of both national authorities and international agreements to prevent the collapse, offering a lesson in the dangers of bureaucratic inertia and short-term thinking. In this respect, the story of cod echoes other tales of resource mismanagement, from deforestation to climate change.

As in “Salt,” Kurlansky’s research is thorough and multidisciplinary. He draws on marine biology, economic history, folklore, and political science to build his case. And while the narrative is global, it maintains a strong human focus. We meet Basque whalers, Boston merchants, Caribbean plantation overseers, and Newfoundland fishermen. These individuals give the story emotional weight and historical grounding.

What sets “Cod” apart from many commodity histories is its balance between wonder and warning. Kurlansky celebrates the ingenuity of the peoples who harvested and traded cod, the richness of the maritime cultures that emerged, and the global connections forged through this single fish. But he also warns of hubris – of what happens when humans mistake abundance for infinity.

In sum, “Cod: A Biography of the Fish That Changed the World” is a model of popular history done well. It reveals how something as seemingly humble as a fish can exert profound influence over human affairs. It bridges the gap between food history and geopolitics, economics and ecology. For readers interested in the hidden forces that shape our world – and the unintended consequences of our appetites – Kurlansky’s “Cod” is recommended reading. Like the fish it honors, the book is lean, enduring, and packed with substance.