Civilization
A cultural group with advanced cities, complex institutions, skilled workers, advanced technology, and a system of record keeping.
Climate
The pattern of temperature and precipitation over a period of time.
Cultural Diffusion
The transmission of ideas and products from one culture to another.
Independent Invention
From the text, it is where an idea or product, "arose independently."
Monsoon
A seasonal wind.
Steppe
A dry grassland.
Agricultural Revolution
The transition from foraging to the cultivation of food occurring about 800-200 B.C.E.(b.c.); also known as the Neolithic Revolution
