By Bob Schulman

Thanks to Bob Marley, reggae rules Jamaica (and just about all the other Caribbean islands). But there’s a lot more to reggae than hip-shaking music. Listen to the lyrics, and you’ll hear words like Jah, Rastafarai, Haile Selassie and Marcus Garvey over and over. The story mashes such characters as King Solomon, the Queen of Sheba and an Ethiopian emperor who’s glorified in reggae music as Jah, or God...