Unit 2 Vocabulary

an extremely long, indefinite period of time; age

• eon

• decade

• century

• bias

a long period of time marked by great events, developments, or figures

• bias

• decade

• century

• era

a unit of time, longer than an epoch and shorter than an era

• decade

• period

• century

• eon

a long period of time marked by a distinctive development

• millennium

• decade

• epoch

• eon

a period of 1,000 years

• millennium

• decade

• century

• epoch

a period of 100 years

• millennium

• decade

• century

• epoch

a period of 10 years

• millennium

• decade

• century

• epoch

something that shows proof that something is true

• bias

• artifact

• evidence

• epoch

an emotional judgment about people or events

• bias

• artifact

• evidence

• era

eyewitness (first-hand account) of an event or time in history

• evidence

• artifact

• primary source

• secondary source