a person who studies and writes about the past
historian
a piece of evidence from the time being studied, such as a diary, photo, letter, speech, or artifact (also known as original source)
Primary Source
Our current year
A.D. 2026
a tool that shows dates in order, marked with important events
timeline
information about the past that was created later by someone who did not see it happen, such as a textbook or an article
secondary source
The years before the birth of Jesus Christ
B.C. or. B.C.E.
the study of the past by looking at things people left behind, like fossils and artifacts
archaeology
Tell if this is Primary or Secondary: Autobiography of Barack Obama
Primary
A.D. stands for this
Anno Domini (in the year of our lord)
an object made or used by humans, such as tools, pottery, clothing, or furniture
artifacts
Tell if this is Primary or Secondary: Textbook about the history of Illinois
Secondary
This half of the timeline counts backward
B.C.
the preserved remains or impressions of once-living things, like plants, animals, or insects, usually found in rock
fossils
This ended about 5,500 years ago when people started writing
pre-history