Answer:
Frederick Douglass
Explanation:
Frederick Douglass (February 14, 1818 - February 20, 1895) He was an American social reformer, abolitionist, orator, writer and statesman. After escaping slavery in Maryland, he became a national leader of the abolitionist movement in Massachusetts and New York, gaining prestige for his oratory and critical writings against slavery. In his time, abolitionists described him as an example of clarity in the arguments against slave owners, indicating that slaves were denied the intellectual capacity to function as independent American citizens. At that time, northerners found it hard to believe that a great speaker had been a slave.
I would say Isaac Newton because his branch was basically physics. He was concerned with matter and motion. Also measuring mass of the sun and planets.
World War II was fought out in the open with many new machines that had been developed. WWI was fought in trenches--long ditches that had been dug in the ground to be used for protection. During WWI, machine guns had also just been invented, so the war was mainly fought with machine guns and trenches. Hope this helps!
The correct answer is the Influenza Pandemic.
This Influenza (flu) Pandemic killed between 20 and 100 million people (estimates differ) - more than the war itself!
The source of the Pandemic is still not known, and people suggest such places as the US, China and France.
