Assertion: glass's history | /r/HasProperty | long
Facets:
Source sentences:
text: Glass has a long history and was first made more than 7,000 years ago in Egypt, as early as 3,000 B.C. Glass is found in a natural state as a by-product of volcanic activity.
text: Lead glass and glazes have a long and complex history, and continue to play new roles in industry and technology today.