54. After simple animal skins, wool is probably the oldest material used for making clothing. We do not know exactly when people started to make woolen clothing, but was probably quite early in human history. The wool was made from the hair of whatever kind of animal people had available. Most of the time these were sheep, but in some desert areas people made cloth from camel hair. In other areas, they used goat hair, and in the mountains of South America, they used the hair from llamas. All these kinds of wool have one thing in common: They protect a person's body from outside changes in temperature Woolen clothing keeps