when was glass invented/History of the glass

When was glass invented? History of the glass Before learning the uses and making of glass we learn the history of the glass. People use the obsidian “the volcano glass”. Obsidian is used for many purposes like making k…
When was glass invented? History of the glass Before learning the uses and making of glass we learn the history of the glass. People use the obsidian “the volcano glass”. Obsidian is used for many purposes like making k…

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