What is the name of the particular feeling that romantic landscapes were meant to invoke in viewers?

The linear perspective changed the quality of art because it gave art a sense of reality. it gave the illusion that the background and surroundings were actually close and/or far and a sense of depth. linear perspective change the quality of art following its birth the renaissance period as they want the art to be more realistic and they believe one way to achieve it is to use the method of linear perspective. it uses the principle of math to realistically portray space and depth in art. 

The period that marks the paleolithic era is between the 250,000 to 10,000 years.

Contemporary jazz is sometimes called smooth jazz

4.4 million is the answer