Most of the settlers traveling to the West floated on

whenever possible.

increasing defense spending.

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.

what the first or next guys says

study of past cultures