Answer:
Edison's perfection of the <u>light bulb</u> helped factories turn night into day.
The answer would be White Man's Burden. It is a term that refers to the idea that Western people had a duty to civilize so-called “inferior” or nonwhite cultures. It was used to justify the European imperialism during the late nineteenth century.
A child born in the United States.
Checks and Balances, sorry comment if this is wrong.
1: optimistic
2: confident