What does “blue wallpaper” mean in the play hello dolly

Which is a good guideline to follow when evaluating art

Most of the sculptures from the later classical greek art. are what because they were made from mold

Above is a picture of one of the most famous discoveries ever to be found in china. answer the following questions: - what does the picture show? - when and where was it discover? - who discovered it and what was he doing when he/she discovered it?