Date back to 3000 BC
The oldest glass objects produced by man were found in Egypt, and date back to 3000 BC. They were made according to a process discovered by sailors in Mesopotamia about 4500 BC. Legend has it that when building their camp fires on the sandy beaches they used the blocks of natural sodium carbonate (natron blocks) that they used to carry around with them. They noticed that ‘glass’ beads formed in the fire.
The Egyptians used this discovery to melt sand, and natron in ovens to make glass. Glass objects were at that time luxury items.