Elephant bird that apparently originated from Marco Polo's account of the rukh in 1298, although he was apparently referring to an eagle-like bird strong enough to "seize an elephant with its talons". Sightings of eggs of elephant birds by sailors (e.g. text on the Fra Mauro map of 1467–69, if not attributable to ostriches) could also have been erroneously attributed to a giant raptor from Madagascar. The legend of the roc could also have originated from sightings of such a giant subfossil eagle related to the African crowned eagle, which has been described in the genus "Stephanoaetus" from Madagascar, being large enough
Seeing the elephant writes that the popularity of the phrase came from Coney Island which used the elephant as a mascot throughout the Gilded Age. "So famous was this massive monument [the Elephant Hotel] that for a generation, "seeing the elephant" signified a quest for satisfactions in disreputable quarters." Earthly delights are not the only reason the elephant craze existed considering its many earlier origins. More likely the elephant Americanism gained steam and then was used as a catchy draw for brothels, saloons or businesses. There were several old west saloons that had 'elephant' in the title, including the famous White Elephant Saloons.