Britain's Whale Hunters: The Untold Story, BBC Four
Adam Nicolson's harrowing history of mass slaughter on the ocean wave
Before the Vikings came to Britain there was no whaling, though coastal-dwellers would avail themselves of any beached strays by chopping them up for their meat and oil. It was the bellicose Norsemen who imported the notion of actively pursuing the creatures, which is how the pilot whale hunt became a tradition in Stornoway in the Outer Hebrides. A line of boats would drive the whales into the shallows, where they were slaughtered by the islanders.