history of glass By BillyBop 1 BCE molten sand - thousands of years ago translucent/opaque glass Mar 1, 600 clear glass - 5th century Glass becomes clear and colourless Jan 1, 800 Coloured glass - 7th century Stained glass windows - churches 1590 Magnification - 1590’s telescope 1600 Magnification - 15th century Clear glass - test tubes
