America's industrial success produced a roll call of financial magnificence: Rockefellers, Morgans, Astors, Mellons, Fricks, Carnegies, Goulds, du Ponts, Belmonts, Harrimans, Huntingtons, Vanderbilts, and many more based in dynastic wealth of essentially inexhaustible proportions. John D. Rockefeller made $1 billion a year, measured in today's money, and paid no income tax. No one did, for income tax did not yet exist in America. Congress tried to introduce an income tax of 2 percent on earnings of $4,000 in 1894, but the Supreme Court ruled it unconstitutional. Income tax wouldn't become a regular part of American Life until 1914. People would never be this rich again.
Spending all this wealth became for many a more or less full-time occupation. A kind of desperate, vulgar edge became attached to almost everything they did. At one New York dinner party, guests found the table heaped with sand and at each place a little gold spade; upon a signal, they were invited to dig in and search for diamonds and other costly glitter buried within. At another party - possibly the most preposterous ever staged - several dozen horses with padded hooves were led into the ballroom of Sherry's, a vast and esteemed eating establishment, and tethered around the tables so that the guests, dressed as cowboys and cowgirls, could enjoy the novel and sublimely pointless pleasure of dining in a New York ballroom on horseback.

Bill Bryson