Roman glass
The glass was not an invention of the Romans. In many ancient lands, efforts were made to find light-transmitting material that could be used to cover window openings, previously covered with wooden blinds. Various materials were experimented in the Hellenic world: grease-soaked cloth, thin plaster tiles, mica and a horn. For hundreds of years wealthy people have advised you in this way. However, as glass was learned over time, it began to displace other materials.