#4 The Tasty Rock that Changed the World (Salt: A World History)
Nat's Notes
The Impact of Salt on Energy
At the outbreak of war a 200 pound sack of Liverpool salt sold at the pier in New Orleans for 50 cents. After more than a year of the blockade in the fall of 1862, six dollars a sack was considered a bargain. By January 1863 the price in Savannah, a major port until the blockade, was $25 for a sack. That's a 50 X increase in the price of salt in three years. The first drills were actually invented to get brackish water because in ancient China they realized that if you could get at the brackishwater underground you could evaporate it and pull the salt out.
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