The ice cream soda was invented by Robert McCay Green in Philadelphia, PA, in 1874
The story goes that Mr. Green ran out of ice for his sodas so he began to use vanilla ice cream, creating the drink
An earlier version of Root Beer was made by colonial settlers, it was called small beer. It was consumed shortly after being bottled so it didn't have time to ferment and turn to alcohol.
Root Beer Float cupcakes are the baked version of a Root Beer Float. It has whipped cream(ice cream), with crushed root beer barrels atop and topped with a cherry.
Root Beer Float candy is the candy version of a Root Beer Float