What were joseph pulitzer and william randolph hearst well known pioneers of?

Engaging in a style of publishing called yellow journalism.

Explanation:

William Randolph Hearst, from the New York Journal and Joseph Pulitzer, from New York World were pioneers of a journalist style that emerged in the late 1800s called yellow journalism. The main characteristics of this type of newspapers were exaggeration, dishonesty and sensationalism. Its goal was to catch people's attention.

"germany's geographic location was an advantage when it was on the offensive in the war because it was situated next to an extremely wide river, the rhine, which was difficult for the allies to cross."

how is this a question? but yes, they were. if i recall correctly, it was very handy for native americans to use buffalo skin.