Among the most dramatic changes in ancient material culture was the widespread adoption of glass vessels for tableware and storage during the 1st c. B.C. and 1st c. A.D. As shown by the quantity of glass finds from occupation sites of the Imperial era, glassware was much more prominent in daily life than it had been previously. This shift occurred concurrently with the widespread adoption of glassblowing. This change in consumer behavior points to a complex process of experimentation, development, and gradual adaptation on the part of both producers and consumers. The transition from centuries-old technologies of core-forming, casting and sagging to blowing required a complete reconfiguration of every stage of glass production, from the increased supply of raw material to the development of new tools and workshop space, and in the training of craftsmen.