The Yoruba, numbering more than 50 million worldwide, are centered in southwestern Nigeria and neighboring Benin and Togo. Their shared identity grew out of the ancient city of Ile-Ife, considered their spiritual homeland, and later the Oyo Empire, which became the largest Yoruba state through its trade wealth and powerful cavalry.
Adire is indigo-dyed by Yoruba women using resist techniques: oniko (tied raffia) and eleko (hand-painted cassava starch), both blocking dye to leave patterned white against deep blue.
Yoruba is a tonal language: the same word spelled without tone marks can carry different meanings entirely, which is why written Yoruba proverbs always carry accent marks over vowels.