AP . History is designed to be the equivalent of a two-semester introductory college or university . history course. In AP . History students investigate significant events, individuals, developments, and processes in nine historical periods from approximately 1491 to the present. Students develop and use the same skills, practices, and methods employed by historians: analyzing primary and secondary sources; making historical comparisons; utilizing reasoning about contextualization, causation, and continuity and change over time; and developing historical arguments. The course also provides seven themes that students explore throughout the course in order to make connections among historical developments in different times and places: American and national identity; migration and settlement; politics and power; work, exchange, and technology; America in the world; geography and the environment; and culture and society.
This satelite image helps explain why more people live in the eastern and southern regions of China. The Gobi Desert is a very difficult place to survive even in modern times and in anceint China it was even more challenging. The nomadic groups living in northern and western China have often been considered less civilized than the Han Chinese who dominate Chinese culture. The Huns, Mongols, Tartars, Tibetans, Turks and many other nationalities have played a very important role in Chinese history although sometimes as combatants rather than friends.