Instead of chasing after their prey, homo sapiens developed spears out of flint and rock to kill their prey. The discovery of fire also helped these homo sapiens cook their food, which helped them to avoid sickness as a result of food poisoning.
Explanation:

I have a dream today! I have a dream that one day every valley shall be exalted, and every hill and mountain shall be made low, the rough places will be made plain, and the crooked places will be made straight; "and the glory of the Lord shall be revealed and all flesh shall see it together
Germany prompted the United States to join World War I because of it's violation of the pledge for unrestricted submarine warfare in the North Atlantic Ocean and Mediterranean Sea, as well as enticing Mexico to turn against the United States. I hope this helps :)
George Washington was appointed as the Supreme Commander of the Continental Army.
Raphael, Italian in full Raffaello Sanzio or Raffaello Santi, (born April 6, 1483, Urbino, Duchy of Urbino [Italy]—died April 6, 1520, Rome, Papal States [Italy]), master painter and architect of the Italian High Renaissance. Raphael is best known for his Madonnas and for his large figure compositions in the Vatican.