From the late Roman (4th-5th cent.) military work De Rebus Bellicis regarding an experimental idea for a new warship:
“In its hull, or hollow interior, oxen, yoked in pairs to capstans, turns wheels attached to the sides of the ship; paddles, projecting above the circumference or curved surface of the wheels, beating the water with their strokes like oar-blades as the wheels revolve, work with an amazing and ingenious effect, their action producing rapid motion. This warship, moreover, because of its own bulk and because of the machinery working inside it, joins battle with such pounding force that it easily wrecks and destroys all enemy warships coming at close quarters.”
And thus a new sub-genre, Ox-Punk, is born. A right-brained tangential thought from Porky's developing seaborne adventure series.