Swedish high diver Arvid Spangberg at the 1908 Summer Olympics in London.

Swedish high diver Arvid Spangberg at theĀ 1908 Summer Olympics in London.

Woman performing a “swallow dive”, 1937.

Woman performing a “swallow dive”, 1937.

A diver bringing up a lobster from the Pacific Ocean. Photograph by Peter Stackpole. Santa Monica, California, USA, 1940.

A diver bringing up a lobster from the Pacific Ocean. Photograph by Peter Stackpole. Santa Monica, California, USA, 1940.

A diving horse and its trainer diving towards a tank full of water. Photograph by Peter Stackpole. Atlantic City, New Jersey, USA, July 1953.

A diving horse and its trainer diving towards a tank full of water. Photograph by Peter Stackpole. Atlantic City, New Jersey, USA, July 1953.

Girls putting on fins to go diving. Photograph by Peter Stackpole. Santa Monica, California, USA, 1940.

Girls putting on fins to go diving. Photograph by Peter Stackpole. Santa Monica, California, USA, 1940.