| Term | Definition |
| Neolithic Revolution | new stone age, development of agriculture, and domestication of animals |
| nomad | people who move from place to place to earn a living |
| urban revolution | growth of cities due to an increase in food supply |
| Industrial Revolution 1750 | switch from hand labor to machine labor, begins in England |
| cultural diffusion | the blending or mixing of cultures, borrowing of ideas...due to trade, travel or war |
| family | related members of a group |
| clan | group of related families |
| tribe | group of related clans |
| nuclear | family made up of mom, pop, and the kids |
| extended | family made up of mom, pop, and the kids and assorted relatives |
| monogomy | one wife, one husband at a time |
| polygamy | more than one husband or wife at a time |