He enlightened people and spread the word
The Principia Mathematica was written by Alfred North Whitehead
Answer: President Dwight Eisenhower proclaimed standards for flying the American flag at half staff on March 1, 1954. Prior to this date, there were no official rules for flying the flag at half staff, which led to policies that differed from area to area.
Explanation:
Answer:
B) The practice of digitizing books that is putting publishers of only printed matter out of business.
Explanation:
I believe it was the Soviets
