Complex sentence: The Deacons are sometimes seen as forerunners of the larger movement for Black Power in the United States, which rose in the last half of the 1960s as blacks struggled to gain control of more activities in their communities.
Split into simpler sentences: The Deacons are sometimes seen as forerunners of the larger movement for Black Power in the United States. This movement developed in the last half of the 1960s as blacks struggled to gain control of more activities in their communities.