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51 pages 1 hour read

Salt: A World History

Nonfiction | Book | Adult | Published in 2002

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Themes

Empires

The Roman Empire, the French monarchy, the Chinese imperial dynasty, and the British monarchy were all built (and sustained) largely on salt production, salt taxes, and salt exportation. Kurlansky makes clear throughout the book that while most people may never think of salt outside of its context as a seasoning, it has been a tool—and sometimes a weapon—wielded by industry titans, despots, and corrupt governments. An empire is founded on the strength of its economy, military might, and the degree to which it can maintain the support of its people. When a nation went to war, its government often raised the salt tax to increase revenue. In this way, the literal war effort was fueled by salt. Without salt, an army could not feed its livestock, transport enough food to feed its soldiers, or maintain morale. If the army languished, the expansion of an empire halted, or the empire could be assailed by stronger forces with greater resources. 

Corruption

The high demand for salt allowed governments to impose oppressive salt taxes on people who could barely afford them. Kurlansky shows that whatever can be exploited eventually will be, and salt has not been an exception. The greatest examples he gives in the book are the hated gabelle, the salt tax that preceded the French Revolution, and the salt tax levied by the British upon the Indians they had colonized. Indians were being taxed at a rate thirty times greater than the British, out of pure profit motive. This continued even as Indians starved during a famine in which they could not buy food, because their money had always come from the salt that they were no longer allowed to produce. The theme of corruption—and its irresistible nature—are best illustrated by Gandhi’s quote: “It would be folly to assume that an Indian Rockefeller would be better than an American Rockefeller” (344). The abundance of salt gave more people access to it, and created the possibility of greater corruption than would be possible with a scarcer substance. 

Value

Much like art, salt seemed to have no set market value. It was worth—as far as salt merchants, producers, and corrupt governments were concerned—whatever they could make people pay for it. As long as there was demand for salt—and the demand didn’t waver until late in the 19th century—prices were set as high as anyone could get away with. However unscrupulous the practices and monopolies were, they signaled the value salt held. This value was also evident in the length to which people would go to obtain it. It was no small feat to mine a mountain with limited resources and crude technology, at great personal risk. But mines grew, and dangerous sea explorations were undertaken to discover new sources of salt while transporting the old. The irony is that salt was everywhere and accessible to nearly everyone until governments and industry titans began to control it. 

Technological Innovation

Breakthroughs in technology helped refine the processes by which salt could be produced and distributed, but also the ways in which it could be extracted from the earth. Without the need to drill deeper shafts in search of salt, it is conceivable that the rotary drill would not have been invented when it was. Pulley systems were engineered to work in concert with oxen and horses in order to drag buckets of brine from the depths of mineshafts. Without the need to place a boat loaded with salt into the shallow Erie Canal, the machine that could lift such a boat and then lower it again might never have been invented. Further, it was only through Davy’s experiments with electrolysis that elements were isolated through electricity, expanding the understanding of chemistry and adding new elements to the periodic table. Separately, it was salt drilling at Spindletop that led to the discovery of how rich the Texas oil fields were. 

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