From the 5th millennium BC, in ancient Egypt, the process of manufacturing the “glass paste” evolved, made by heating the silica (i.e. the desert sand with which stones are covered which, after being pierced, are sold and they barter).
It seems that the Phoenicians discovered this material one night, lighting a fire on the beach and finding around it drops of glass formed with fire, sand and silicon. They were also the ones to invent the blown glass technique and to refine its composition, creating everyday objects that began to be indispensable for the population of the Mediterranean.