11
Lesson 11 of 84 · Research Skills
Writing a Thesis Statement
Historical maps show how people understood geography, borders, and territories at a specific time. Comparing old and modern maps shows how knowledge changed.
Key Facts
1
Primary sources come from the original time.
2
Secondary sources interpret the past.
3
Bias can affect any source.
Check Your Understanding
Question 1
1 of 2What is a primary source?