In detroit, michigan and newark, new jersey, construction projects in the cities were linked to a cause of the civil unrest. the construction projects were a cause of tension because?

"the disturbance, Governor George W. Romney ordered the Michigan Army National Guard into Detroit, and President Lyndon B. Johnson sent in both the 82nd and 101st Airborne Divisions. The result was 43 dead, 1,189 injured, over 7,200 arrests and more than 2,000 buildings destroyed. The scale of the riot was surpassed in the United States only by the 1863 New York City draft riots during the American Civil War, and the 1992 Los Angeles riots. The riot was prominently featured in the news media, with live television coverage, extensive newspaper reporting, and extensive stories in Time and Life magazines. The staff of the Detroit Free Press won the 1968 Pulitzer Prize for general local reporting for its coverage."

Contributing factors  leading  to the harlem renaissance were the great migration of african americans to northern cities, which concentratedambitious  people in places where they could encourage each  other, and the first world war, which had created new industrial work opportunities for tens of thousands of people.