The Egyptians built irrigation systems in order to supply their crops with water.<span />
Maximian
They were then both given someone beneath them to make the tetrarchy
Back in 1536, Spanish people conquered Peru and discovered potatoes
They took these potatoes to Europe and cultivated them and grew them in northern Europe. It almost took them 4 years to spread them all around Europe.
Both Athens and Sparta. :3
The term that best describes a cowboy's way of life is "nomadic."