By the 19th century, Lamu was supplying oceangoing dhows with ivory, oil, seeds, animal hides, tortoiseshell, hippo teeth, and slaves in large quantities.
Pada abad ke - 19, Lamu memasok kapal - kapal penjelajah samudra dengan gading, minyak, biji - bijian, kulit binatang, cangkang kura - kura, gigi kuda nil, dan budak dalam jumlah besar.