Elon Musk tweeted that he'd like to buy Coca-Cola to 'put the cocaine back' in the soft drink

While Musk's comments about Coca-Cola were likely tongue-in-cheek, they bear some historical truth.

According to the National Institute on Drug Abuse, cocaine was legal in 1885 when John Pemberton, a pharmacist from Atlanta, first brewed the drink.

At the time, Pemberton's recipe included a cocaine extract obtained from coca leaves. He described the drink as a "patent medicine" and "brain tonic and intellectual beverage."

A 1988 New York Times article on The Coca-Cola Company also reported how cocaine was initially included in the drink but eliminated it by the 1900s.

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