What is a cotton gin?
A) a machine for making cotton into thread
B) the water-powered weaving loom
C) a fabric made from cotton
D) a machine used to remove seeds from cotton

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.

c) troops march forward in close formation against newer, more accurate weapons