Unit 1 Prehistory

The recovery and study of artifacts, ruins, bones and fossils remaining from the past

• archeology

• artifacts

• primary source

• Big Bang Theory

All of the time since the creation and formation of Earth, c. 4.6 billion years ago

• AD

• Geological Time

• prehistory

• circa

The remains of imprints of once-living animals

• archeology

• fossils

• Creationism

• Big Bang Theory

Around a date OR number of years ago; approximately (usually shown as an italic "c.")

• circa

• primary source

• CE

• BCE

History before the development of writing

• prehistory

• secondary source

• Geological Time

• primary source

A period of time

• circa

• BCE

• era

• CE

Objects made by humans that teach about the customs and beliefs of the past

• BCE

• archeology

• artifacts

• fossils

Before common era

• CE

• BCE

• AD

• BC

Materials/sources that were created later by people who studied the original source

• evolution

• Geological Time

• secondary source

• primary source

Common era

• circa

• BCE

• CE

• AD