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Now owned by the Dr Pepper Snapple Group, Vernors was first made in the late 1800s. According to company history, it was invented in 1866, though Serious Eats notes its 1911 trademark application says it first entered the market 1880. Either way, that's pretty old -- older than Coca-Cola or Dr Pepper.
Vernor was reportedly exacting when it came to his ginger ale, and for a long time it could only be found at the pharmacy he opened. It did eventually spread to other soda fountains in Detroit, where Vernor gave owners pamphlets with strict instructions on how it should be sold. 4. You can get it as a Slurpee now.