Passage: The New Yorkers, though not particularly organized, called their activities Dada, but they did not issue manifestos. They issued challenges to art and culture through publications such as The Blind Man, Rongwrong, and New York Dada in which they criticized the traditionalist basis for museum art. New York Dada lacked the disillusionment of European Dada and was instead driven by a sense of irony and humor. In his book Adventures in the arts: informal chapters on painters, vaudeville and poets Marsden Hartley included an essay on "The Importance of Being 'Dada'".

Question: What was not issued by The New Yorkers?
manifestos