I believe it was trade and industrialization.
Farming was different in different places because of climate, ground (like the nutrients in the soil, if it was sand or soil), and what they grew depended on what was there. like there were things you could grow in water, thing you could grow in dirt.
Answer:
Cyrus the Great-defeated the Medes and became the first leader of the Persian Empire-created the Immortals, a force of 10,000 highly skilled warriors to serve him-expanded the Persian Empire by conquering surrounding landsDarius 1-divided the Persian Empire into 20 provinces (these were called satraps)-tolerated religions and customs of conquered peoples-established the capital called Persepolis
Explanation:
