History dating back to 1773
History dating back to 1773 - Online sex
But in general, archaeological evidence suggests that the first true glass was made in coastal north Syria, Mesopotamia or ancient Egypt.
there was a rapid growth in glass-making technology.Archaeological finds from this period include colored glass ingots, vessels (often colored and shaped in imitation of highly prized hardstone carvings in semi-precious stones) and the ubiquitous beads.The alkali of Syrian and Egyptian glass was soda ash, sodium carbonate, which can be extracted from the ashes of many plants, notably halophile seashore plants: (see saltwort).The earliest vessels were 'core-formed', produced by winding a ductile rope of glass round a shaped core of sand and clay over a metal rod, then fusing it with repeated reheatings.The earliest known glass objects, of the mid second millennium BC, were beads, perhaps initially created as accidental by-products of metal-working (slags) or during the production of faience, a pre-glass vitreous material made by a process similar to glazing.Glass remained a luxury material, and the disasters that overtook late Bronze Age civilizations seem to have brought glass-making to a halt.
Indigenous development of glass technology in South Asia may have begun in 1730 BC.
In ancient China, though, glassmaking seems to have a late start, compared to ceramics and metal work.
In the Roman Empire, glass objects have been recovered across the Roman Empire in domestic, industrial and funerary contexts.
Anglo-Saxon glass has been found across England during archaeological excavations of both settlement and cemetery sites.
Glass in the Anglo-Saxon period was used in the manufacture of a range of objects including vessels, beads, windows and was even used in jewelry.
Naturally occurring glass, especially the volcanic glass obsidian, has been used by many Stone Age societies across the globe for the production of sharp cutting tools and, due to its limited source areas, was extensively traded.