text: Proto-porcelain material has been discovered dating back to the Neolithic period, with shards of material found in archaeological sites from the Eastern Han period in China. These wares are estimated to have been fired from 1260 °C to 1300 °C. In the 8th century, porcelain was invented in Tang Dynasty, China. Porcelain in china resulted in a methodical development of widely used kilns that increased the quality and quantity that porcelain could be produced. Tin-glazing of ceramics is invented by Arabic chemists and potters in Basra, Iraq.
  During the Early Middle Ages, the technique of creating windows steered more towards glass blowing non-tinted balls that were later flattened, but then in the late Middle Ages; the methodology returned to that from antiquity with a few minor adjustments, which included rolling with metallic rollers.
  In the 9th century, stonepaste ceramics were invented in Iraq, and lustreware appeared in Mesopotamia. In the 11th century, Damascus steel is developed in the Middle East. In the 15th century, Johann Gutenberg develops type metal alloy and Angelo Barovier invents cristallo, a clear soda-based glass.