Historians and archaeologists believe that beer was invented around 10,000 B.C. somewhere in Mesopotamia, probably around the same time humans began farming grains. The earliest chemically verified sample of beer was found in 7,000-year-old pottery jars discovered in Iran.
Early beer produced throughout the Near East from Egypt to Iran was brewed with a type of barley bread instead of the mash that modern brews use. In some places like Egypt, beer, which was thick and gruel-like instead of liquid, was a meal as well as an alcoholic beverage. Gradually, filtered liquid beer became predominant. Around 1000 A.D., German brewers began to use hops in their beer-making process, creating the forerunner of modern beer.