“Everything I have done since,” the artist later said, “has been based on that eggbeater idea.”

An exhibition at the Art Institute of Chicago brings the text and the photographs for “Harlem Is Nowhere” together for the first time since 1948.

Alexander the Great created a new world of encounter and multiplicity.

A new museum of contemporary art opens in New York.

The contemporary focus marks a deep shift, like the moving of tectonic plates under the Metropolitan.

Kelly’s work abstracted from visual experience only to return us to it.