"Dies Irae", is a Latin word of the Hymn on the Last Judgment, ascribed to Thomas of Celano (d. c. 1256) and once forming part of the office for the dead and requiem mass.
This is part of the website I've found and I believe it'll help you out to find the era composition: https://www.britannica.com/topic/Dies-irae
Hop this helps!
Bradbury repeatedly uses the color gray to describe the parlor. He chooses this color to show the depressing nature of the parlor. He sees the viewing parlor as a way for people to turn off from experiencing life and the world around them. All the vibrancy of life is drained out.
In contrast when he talks about the park he uses the color green. Green symbolizes life, growth, vitality. He's showing that society has become dull and miserable inside their homes instead of alive and joyous in the world.
Answer: with time.
Explanation: Just a guess; there really isn't enough information pertaining to how to answer the question :)
1: star
2: measure
There are your answers