WHAT WAS THE GREATEST EFFECT WWI HAD ON HUMANITY?

One of the most significant impacts of World War One was huge advances in technology, which would transform the way that people all around the world travelled and communicated, in particular, in the years after the conflict. New weapons and technologies were developed and used that led to more destruction than any war had seen in the past.

Explanation:

in 550 b.c.e. cyrus the great, the leader of the persians, conquered the medes and united the iranian people under one ruler for the first time. cyrus became the first king of the persian empire and went on to establish one of the largest empires in world.

d. it gave farmers a way to organize for more political power