Articles relating to the ghetto riots (1964-1969), the summer social unrest across the United States in the 1960s, characterized by African American groups using violent tactics. The six days of unrest throughout New York City during the Harlem riot of 1964 is viewed as the first of clusters of riots, uncoordinated with each other, evidently unplanned, most often in cities during the summer months. The pattern caused 159 separate incidents of violence and unrest over the long, hot summer of 1967, came to a climax during the national wave of King assassination riots in over 100 American cities in 1968, and relented in 1969.