The Persian Empire became the most powerful empire in the world in the fifth century BC. You learned about four Persian kings (listed below). Which of the four kings do you think had the greatest impact? Do some more internet research if you need to. Explain your answer. 1) Cyrus
2) Cambyses
3) Darius I
4) Xerxes I

Americans often speak of their country as one of several large regions.  these regions are cultural units rather than governmental units --  formed by history and geography and shaped by the economics, literature and folkways that all the parts of a region share. what makes one region different from another? a region's multicultural heritage as well as distinct demographic characteristics like age and occupation make regions different and special. within several regions, language is used differently and there are strong dialects. there are also differences in outlook and attitude based on geography.