During the 13th century, Ghanaians developed their unique art of ''adinkra'' printing. Hand-printed and hand-embroidered adinkra clothes were made and used exclusively by the then Ghanaian royalty for devotional ceremonies. Each of the motifs that make up the corpus of adinkra symbolism has a name and meaning derived from a proverb, a historical event, human attitude, ethology, plant life-form, or shapes of inanimate and man-made objects. These are graphically rendered in stylised geometric shapes. The meanings of the motifs may be categorised into aesthetics, ethics, human relations, and concepts.