Hemp can be researched back 10,000 as one of the first plants used to create fibers for clothing. It can be refined into a variety of commercial items including paper, textiles, clothing, biodegradable plastics, paint, insulation, biofuel, food, and animal feed. (Wikipedia)
The outer fibers of the plant are commonly used in clothing. The fibers are commonly mixed with cotton or silk to form fabrics.
Hemp seeds are commonly used in food. “In 2011, the U.S. imported $11.5 million worth of hemp products, mostly driven by growth in demand for hemp seed and hemp oil for use as ingredients in foods such as granola” (Wikipedia)
Some hemp’s biggest and most promising uses is as a replacement for concrete, and plastics. It can be used in place of fiberglass and is commonly used in the auto industry.
It is common in pet bedding, biofuels, water purification, farming weed control,… and the list seems to go on and on for its various uses.