From their website:
Its origins are lost somewhere in the stone age, long before history was recorded. Anthropologists can only guess how it happened, and their guesswork goes something like this: once, in the camp of some nomadic hunter-gatherers, there was a supply of wild grain, painstakingly collected for food. Somehow, possibly in a sudden rainstorm, a pool of warm water formed where the grain was stored. In a short time the grain fermented, turning the water into a thick dark liquid. Some adventurous soul among these primitive people sampled the liquid, and found that it tasted good.
Man had discovered beer.
