Olive Green Bottle.
Mold blown with basket weave pattern.
Glass, a man made substance, was invented in Mesopotamia in the mid-second millennium BC probably as a substitute for semiprecious stones. The first glass containers were made about 1500 BC. For the first one thousand years of making glass vessels the results were objects of luxury. When the demand grew for glassware, it was discovered that glass could be blown (mid first century BC). The introduction and immediate spread of this revolutionary technique must have reduced the price of glass to within reach of everybody. Throughout the Roman Empire (AD 100 -400) a massive amount of glass was produced at many factories.