The Iliad by Homer Book 7 Page 27

The Achaeans in like manner heaped their dead sadly and silently on the pyre, and having burned them went back to their ships.

Now in the twilight when it was not yet dawn, chosen bands of the Achaeans were gathered round the pyre and built one barrow that was raised in common for all, and hard by this they built a high wall to shelter themselves and their ships; they gave it strong gates that there might be a way through them for their chariots, and close outside it they dug a trench deep and wide, and they planted it within with stakes.

Thus did the Achaeans toil, and the gods, seated by the side of Jove the lord of lightning, marvelled at their great work; but Neptune, lord of the earthquake, spoke, saying, “Father Jove, what mortal in the whole world will again take the gods