Great Migrations: A People on the Move examines the powerful influence of Black migration on American culture and society. While the first large migration was a forced journey from Africa in bondage, voluntary migrations in the 20th and 21st centuries have significantly reshaped the nation. Actor, Narrator and Host: Henry Louis Gates, Jr. Director: Julia Marchesi, Nailah Ife Sims. Producers: Julia Marchesi, Nailah Ife Sims, Kevin Burke, Kathe McCormick, The a Piltzecher.