People who move from place to place
Nomads
A silver metal stronger than bronze
Iron
An organized fight between groups or countries
War
A chart or table showing the days, weeks, and months of a year or other seasonal information
Calander
To change into a new species over time
Evolve
A metal made of copper and tin
Bronze
To exchange goods or services
Trade
A line of rulers from one family
Dynasty
A genetic code found in cells that makes everyone unique
DNA
A group of states or nations ruled by one powerful government
Empire
A place where goods are bought and sold
Market
Tax
A period of time
Era
The time before writing was invented
Prehistory
A period of 100 years
Century
Forcing people to live and work with no freedom or payment
Slavery
A long period of time with an unusually cold climate
Ice Age
A group of people sharing similar beliefs and behavior
Culture
The powerful ruler of an empire
Emperor
The technology used to provide clean drinking water and sewage removal
Sanitation
An abbreviation for Before the Common Era, used to tell when something occurred
BCE
Something left over, like grain after a harvest
Surplus
An army of trained soldiers
Military
A material provided by the Earth that people use
Natural Resource
The remains of living things from long ago, like bones or marks on a rock
Fossil
An advanced state of cultural and material development in a society
Civilization
To take control of people or a place by force
Conquer
A natural substance that is often necessary for human health, like calcium and salt
Mineral
Died out, no longer exists
Extinct
The power structure to represent, control, and organize a society
Government
A set of beliefs that include a higher power, like a god
Religion
A religion and philosophy from eastern and central Asia based upon the teachings of Buddha
Buddhism
A human species that no longer exists
Neanderthal
A city and surrounding territories governed as one state
City-state
A person controlled by a ruler or king
Subject
The oldest major religion, primarily in India. Hindus believe in one supreme god in addition to an infinite number of lower-level gods
Hinduism
Growing plants and raising animals for food
Agriculture
A ranking of people in a society based upon their role, wealth, or job
Social class
The design and construction of buildings
Architecture
A hereditary class in Hindu culture that set a person’s social and political position
Caste