Context: Meanwhile, the Industrial Revolution laid open the door for mass production and consumption. Aesthetics became a criterion for the middle class as ornamented products, once within the province of expensive craftsmanship, became cheaper under machine production.

Question: What started with the Industrial Revolution?
Answer: mass production and consumption

Question: What became cheap enough for the middle class to buy?
Answer: ornamented products

Question: As products came within their financial reach what concept began to interest the middle class?
Answer: Aesthetics

Question: What ended with the Industrial Revolution?
Answer: Unanswerable

Question:  What became cheap enough for the lower class to buy?
Answer: Unanswerable

Question:  As products came within their financial reach what concept began to interest the upper class?
Answer: Unanswerable

Question:  As products came within their financial reach what concept began to interest the lower class?
Answer: Unanswerable