In what time period do you suppose medicine improved the most? Early Middle Ages
Later middles ages
The renaissance
The 18th century
19th century
20 century

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.