Hoodoo is a set of spiritual practices, traditions, and beliefs created by enslaved Africans in North America that were held in secret from slaveholders. Hoodoo evolved from various traditional African religions and practices, and in the American South, incorporated various elements of indigenous botanical knowledge. In the Gullah South Carolina Lowcountry Hoodoo is also known as "Lowcountry Voodoo." Following the Great Migration of African-Americans, Hoodoo spread throughout the United States. Practitioners of Hoodoo are called rootworkers, conjure doctors, conjure man or conjure woman, and Hoodoo doctors. Regional synonyms for hoodoo include conjure or rootwork.