The earliest known man made glass dates back to circa 3500 BCE and to Egypt and Eastern Mesopotamia. Discovery of glassblowing around 1st century BC was a major breakthrough in glass making.

The earliest known man made glass dates back to circa 3500 BCE and to Egypt and Eastern Mesopotamia. Discovery of glassblowing around 1st century BC was a major breakthrough in glass making.
I’m taking this time to catch up with the paired videos for recent WWB editions. Follow the TST YouTube channel to catch the videos I’m busily creating now. –Mike
1START: Philosophy >
3Critical Thinking >
4History!
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