Some ancient Greek pottery terminology today. Pretty interesting how they found out these things to make their pottery art.

 

Black-figure Pottery

One of the styles of painting on antique Greek vases that leaves black figures (after oxygen withdrawn in kiln)

 

Red-figure Pottery

One of the styles of painting on antique Greek vases that leaves red figures (after oxygen added in kiln after it was withdrawn to create black-figures)

 

Vitrify

Convert (something) into glass or a glasslike substance, typically by exposure to heat