Preserved remains of ancient human, animal, or plant.
Fossil
A trading system in which people exchange goods directly without using money.
Barter
Person who lives by hunting animals and gathering plants.
Hunter-gather
The Mesopotamian system of writing that uses triangular-shaped symbols to stand for ideas or things.
Cuneiform
A wide, flat plain between the Tigris and Euphrates rivers in present-day Iraq.
Mesopotamia
A state containing several countries or territories.
Empire
To supply water.
Irrigate
Soldiers who fight while riding horses.
Cavalry
Object made by human being.
Artifact
Scientist who studies the physical materials of the earth itself, such as soil and rocks.
Geologist
A brick, pyramid-shaped Mesopotamian temple.
Ziggurat
Worship of many gods or deities.
Polytheism
Beliefs, customs, practices, and behavior of a particular nation or group of people.
Culture
A set of laws that governed life in the Babylonian Empire.
Hammurabi’s Code
Money that is used as a medium of exchange, usually bills or coins.
Currency
Something that can be used as proof.
Evidence
Scientists who study human life in the past by examining the things that people left behind.
Archaeologist
To control or strongly influence.
Govern
Time before humans invented writing.
Prehistory
An independent state consisting of a city and its surrounding territory.
City-state
An independent state that works with other states to achieve a shared military or political goal.
Ally
A payment or gift to a stronger power.
Tribute
A grand stone pillar.
Stele
An idea that all members of a society—even the rich and powerful—must obey the law.
Rule of Law
Study of humankind in all aspects, especially development and culture.
Anthropology