25
Lesson 25 of 84 · The Constitution
Judicial Review: Marbury v. Madison
The United Nations, founded in 1945, has 193 member countries working to maintain peace, protect human rights, and promote international cooperation.
Key Facts
1
Checks and balances limit power.
2
The Bill of Rights has 10 amendments.
3
Citizens elect representatives to make laws.
Timeline
1803
The Louisiana Purchase doubles the size of the U.S.
1861
The Civil War begins
1865
The Civil War ends; slavery is abolished
Check Your Understanding
Question 1
1 of 2What are checks and balances?