Ayer's Sarsaparilla: the discovery of America. Abstract: Advertisement for Ayer's Sarsaparilla, "a compound concentrated extract composed of the sarsaparilla-root of the tropics, stillingia, yellow dock, mandrake, and other roots held in high repute for their alterative, diuretic, tonic, and curative properties." Card features Columbus discovering America, only to discover that Ayer's Sarsaparilla was there ahead of him. Original public domain image from Flickr