In glass blowing, the gaffer shapes a molten mass of glass by blowing air into it through a tube. Around the first millennium B.C., Syrians invented the craft, which quickly became a rich export to all parts of the Roman Empire. These early vessels had a decorative purpose (shaped as shells, clusters of grapes, or human heads). Syrian blowers later executed more abstract, spherical forms without the use of molds, a technique that has remained mostly unchanged to... More >>>