This was the major newspaper owned by william randolph hearst in the late-
1800s and a practitioner of "yellow journalism."

The Journal-American was the product of a merger between two New York newspapers owned by William Randolph Hearst. Worked during the time of yellow journalism. This was one of the primary newspapers owned by Joseph Pulitzer and a major practitioner of "yellow journalism"

explanation:

the addition to geographic boundaries that might have  kept the people of the huang river civilization from traveling to far distance region is that they had learned about the other river valley civilizations but feared contact would bring invasion.

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