What were Joseph Pulitzer and William Randolph Hearst well known pioneers of?

The rivalry between the American Newspapers of William Randolph Hearst and Joseph Pulitzer, named New York Journal and New York World respectively, in the late 1800s, resulted in a journalism style called yellow journalism.

herodotus taught this. herodotus was an ancient greek historian who was born in halicarnassus in the persian empire. he is known for having written the book the histories, a detailed record of his "inquiry" on the origins of the greco-persian wars.