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.
Man Made Glass
3500 BCE
That History Story,
was first published on TST 5 years ago.
All story is part of the broader TST project.
Each tidbit is a small act of intellectual housekeeping — preserving the evidence behind an idea so the larger story can remain clear.
The end!