There are two reasons, according to Jim Adovasio, we don’t think of baskets or textiles when we think of the Stone Age. One is that stones and bones, being far more durable, are far more common at archeological sites than artifacts made of fiber... And yet it has been around a long time, as four small pieces of clay described by Adovasio this past year make clear. Found at a site called Pavlov in the Czech Republic, they are 27,000 years old--and impressed with patterns that could only have been created by woven fibers. These artifacts push back the date...