Ghanaian society was split into three castes: royals, commoners and slaves. Traditional regal status is still recognized, but slavery no longer plays a part in Ghanaian society. Polygamy is legal but generally only practiced by wealthy and powerful men. A widow is expected to marry the brother of her late husband, and the brother is expected to assume responsibility for any children. Enduring characteristics of Ghanaian interpersonal culture include an emphasis on hospitality, formality and good manners