Question

what is glass made from?who discovered glass?

Answer 1

Archaeologists have found evidence of man-made glass which dates back to 4000 BC; this took the form of glazes used for coating stone beads. It was not until 1500 BC that the first hollow glass container was made by covering a sand core with a layer of molten glass.

Answer 2

Molten glass is poured into a form and allowed to harden. The earliest glass molds were probably made out of sand.

These methods are believed to have been first used by Sumerians in ancient Mesopotamia (Iraq and Syria) more than 5,000 years ago.

Mesopotamia

The earliest known man made glass are date back to around 3500BC, with finds in Egypt and Eastern Mesopotamia. Discovery of glassblowing around 1st century BC was a major breakthrough in glass making.

Little is known about the first attempts to make glass. However, it is generally believed that glassmaking was discovered 4,000 years ago, or more, in Mesopotamia. The Roman historian Pliny attributed the origin of glassmaking to Phoenician sailors.

glass made in the 1700s

Sand, soda ash and lime. They are all melted together to make what we call glass. When glass is in its melted stages, it can be shaped into many different objects however the most common are blowing, pressing, and drawing. ... Humans first manufactured glass somewhere around 3000 B.C. by blowing the glass.