On August 19, 1893, Frank. J. Wisner, the owner of Cripple Creek Brewing in Colorado, concocted the world’s first-known root beer float. Legend says that Wisner’s idea was born when he thought ...

[Paul] is sick and tired of his homemade root beer being flat. He analyzed the problem with his carbonation techniques and ended up with a method of force carbonating beverages using dry ice.