Ancient Greek culture (Empedocles, Aristotle) had fire, earth, air, and water. Such a system is also known in Buddhism and alchemy. Sometimes the third of these elements is conceived as wind.
Hinduism has these four plus a fifth, understood as aether or void; Japanese culture conceives of the fifth as void, sky, or heaven.
Chinese and Korean culture have five elements: fire, earth, water, wood, and metal.
My question is this: have there been any human cultures that have had a four-element system different from fire-earth-air(wind)-water?