What was the date and time of Warhol 's death in New York City ?
It was during the 1960s that Warhol began to make paintings of iconic American objects such as dollar bills , mushroom clouds , electric chairs , Campbell 's Soup Cans , Coca - Cola bottles , celebrities such as Marilyn Monroe , Elvis Presley , Marlon Brando , Troy Donahue , Muhammad Ali , and Elizabeth Taylor , as well as newspaper headlines or photographs of police dogs attacking civil rights protesters .