sentences:  Cotton and flax are two of the most common natural fibers that are used today, but historically natural fibers were made of most parts of the plant, including bark, stem, leaf, fruit, seed hairs, and sap.Flax is believed to be the oldest fiber that was used to create textiles, as it was found in the tombs of mummies from as early as 6500 B.C.The fibers from the flax are taken from the filaments in the stem of the plant, spun together to create long strands, and then woven into long pieces of linen that were used from anything from bandages to clothing and tapestries.