Who Were the Sea Peoples?

I picked up Moby Dick for some research (you will see the results soon), and wound up browsing some other bits for the first time in years. Melville was pretty darned funny: "Nantucket! Take out your map and look at it. See what a real corner of the world it occupies; how it stands there, away off shore, more lonely than the Eddystone lighthouse. Look at it—a mere hillock, and elbow of sand; all beach, without a background. There is more sand there than you would use in twenty years as a substitute for blotting paper. Some gamesome wights will tell you that they have to plant weeds there, they don't grow naturally; that they import Canada thistles; that they have to send beyond seas for a spile to stop a leak in an oil cask; that pieces of wood in Nantucket are carried about like bits of the true cross in Rome; that people there plant toadstools before their houses, to get under the shade in summer time; that one blade of grass makes an oasis, three blades in a day's w...