Some days, you just feel like you need a drink. Other days, you can't live without one. For hundreds — maybe thousands — of English troops, there's one drink that literally saved their lives: the gin and tonic.
It all started when the Spanish learned that Quechua tribesmen in the 1700s (in what is now Peru) would strip the bark from cinchona trees and grind it to help stop fever-related shivering. The active ingredient in the cinchona power was a little chemical known as quinine. It didn't take long before Spain began to use the remedy to fight malaria.
Eventually, the treatment made its way around the world, helping the British colonial government in India maintain order.
Any gin is a better complement to wood shavings than wine.
Whilethe French mixed the cinchona with wine, the British mixed theirs with gin,sugar, and,often, a bit of lemon. Later on, this mixture became even more pleasantwhen a Swiss jeweler of German descent, Johann Jakob Schweppe, created amixture of bubbly soda water, citrus, and quinine—and calledit "Schweppes Indian Tonic Water."
By 1869, Indian companies were manufacturing their own soda water and lemon tonics. With easy access to the soda and one of Britain's favorite spirits, the redcoats were free to continue colonizing the subcontinent unabated by pesky mosquitoes.
Too bad there wasn't a cocktail that helped the British conquer Afghanistan.
Today's tonic water has much less quinine in it. To prevent malaria, you'd need between 500-1,000 milligrams of quinine, but consuming an entire liter of tonic water today would only get you about 83-87 milligrams. Quinine alone isn't even an effective treatment for the disease anymore, as malarial parasites have grown resistant to the drug. These days, a drug cocktail is more effective at malaria prevention than quinine alone.
So, bring along your Hendrick's and Tonic, but don't forget to bring your malaria pills, too.