Suggestions for appliances that could be used for moving beneath the surface of the water can be dated back as far as Herodotus in the 5th century B.C.
Iingcebiso kwizixhobo ezinokusetyenziswa ekuhambeni ngaphantsi kwamanzi kungabuyiselwa umva kwi- Herodotusi kwinkulungwane yesihlanu phambi kokuba uKrestu azalwe.