When did the New Journalism movement become prominent in the United States?

The New Journalism movement became prominent in the United States during the 1960s and 1970s.12

This American literary movement pushed the boundaries of traditional journalism and nonfiction writing by applying techniques typically associated with fiction—such as sustained dialogue, vivid scenes, and interior monologue—to the reporting of real-life events. While the movement had various literary precursors, it emerged as a distinct cultural phenomenon during a period of fundamental social, political, and cultural change in the U.S.12

Prominent writers associated with the movement, including Tom Wolfe, Truman Capote, and Gay Talese, often published their work in magazines such as Esquire, The New Yorker, and New York, where their in-depth, narrative-driven stories achieved great commercial success.12