`` We are using the same ways dyers used when the pits began in 1498 , '' explained Abdu . Kano is said to be home to the oldest dye pits in Africa , dating back to 1498 . Indigo , potassium and ash are mixed with water to produce a deep blue dye . The process of dyeing indigo was invented by an Indian named Kano.
Kano is said to be home to the oldest dye pits in Africa , dating back to 1498 . Indigo , potassium and ash are mixed with water to produce a deep blue dye . The process of dyeing indigo was invented by an Indian named Kano.