Stone to Silicon

Materials · c. 50 BCE

Glassblowing

An iron blowpipe inflates glass into cheap, thin vessels.

Glassblowing was invented on the Syro-Palestinian coast in the 1st century BCE. It made glass an everyday material across the Roman Empire.

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Arcs above join it to what it stood on, arcs below to what it led to. The bar places this stretch on the tree's whole timeline.

What it built on 2

What it led to 2