I believe youe answer is C. The Triangle Shirtwaist Factory Fire
They lost 74% of our treaty territory
Written in 1882, idk where
Egypt's main contributions to mankind are in the field of mathematics, geometry, astronomy, and engineering as well, since the Egyptian constructive capacity was extremely advanced at the time.
The pyramids are a good example of this, which demonstrates all the geometric and mathematical knowledge of these people. Great Greek philosophers are believed to have acquired mathematical knowledge by learning from the Egyptians.