Scientist who studies objects to learn about the past

People who move from place to place as a group to find food

The use of advanced tools to solve problems; an ability gained by the practical use of knowledge

a set of beliefs, and traits shared by a group of people

times when glaciers covered much of the Earth's land

to reveal

an extreme change affecting people's lifestyle

a person who lives by gathering food

to tame for human purposes

Ranking of people in a group

practicing seasonal migration, while maintaining a base at which crops are grown

a system that supplies dry land with water through ditches, pipes, or streams

performing a specific task to be efficient

a person's rank compared to others

A place where people worship

the period in human history when people began to make and use bronze

a government whose ruler, a king or queen, inherits the position from a parent

complex society