Answer:
Their explosive invention would become the basis for almost every weapon used in war from that point on, from fiery arrows to rifles, cannons and grenades. Gunpowder made warfare all over the world very different, affecting the way battles were fought and borders were drawn throughout the Middle Ages.
Answer:
The seventeenth Amendment allowed the people to vote for senators without the electoral college. After the Amendment citizens could directly vote for those in the senate, though voting for the president will still require the electoral college.
Ibn Battuta. He traveled to China and spread Islam.
The answer is c bc in the cold war the US didn't like communists so soviet sent misses to Cuba (which was communist) and they just kept them there as a threat and reminder