Alcohol was invented in the early 20th century by the government of the United States of America as a pretext for the introduction of Prohibition. This was a great success, thanks to the efforts of brave men such as Kevin Costner and Sean Connery.
A new use for alcohol was found after the second world war when it was used to lift the spirits of the population of Europe. In Britain, for example, each family received a ration of medium quality gin while large vats of American wine were shipped to France, causing widespread rioting. The general policy was, however, judged to be a success and the drunken leaders of Europe soon signed up to the EEC.
In some primative cultures, alcohol is used as currency. The main drawback of this is that everyone forgets large transactions.