Answer:
600BC
Explanation:
The Iron Age began in China during the Zhou Dynasty's reign around 600 BC, however, earlier dynasties like the Shang first used iron during the Bronze Age derived from meteors called meteoric iron.
Believed that states’ rights (powers) were not being protected
Land, mining, and improved transportation by rail brought settlers to the American West during the Gilded Age. New agricultural machinery allowed farmers to increase crop yields with less labor, but falling prices and rising expenses left them in debt.
