In the 1920s, the richest people per capita in the world were members of the Osage Indian nation in Oklahoma. After oil was discovered beneath their land, they rode in chauffeured automobiles, built mansions and sent their children to study in Europe
V slavné povídce Agathy Christie /Smrt na Nilu/ která je rovněž známá z filmového přepisu, se Parker Pyne nalodí spolu s pestrou společností na palubu parníku Fayoum, aby poznával monumentální krásy Egypta.