1. What exactly does this map show?

A: This map shows the mean center of U.S. population is determined by the United States Census Bureau from the results of each census.
2. What is this building and which immigrant group got a foothold in it?

A: This is Tammany Hal, a New York City political organization founded in 1786. Irish go a foothold in it.

3. A supporter of what group was probably behind the creation of this flag? Who are the "Native Americans" in the flag's inscription?

A: A supporter of anti-immigrant was probably behind the creation of this flag, the “Native Americans” are those early immigrants.
4. What is this device called? What does it do? How did it change America?

A: This is cotton gin, the machine can quickly and easily separates cotton fibers from their seeds. This increased the production of clothing or other cotton goods.
5. Where might the image below have taken place? What does your answer say about the connection between the North and South?

A :This image might taken place in Francis Lowell's textile mills,north is more industrialize than south.
6. What is this device called and what does it do?

A: This device called The Mower, The Mower makes farm more easier and produce more.

7. What is this boat' name and why is it so significant to American history?

A: This is Clermont steamboat, is so significant to American history because now people used engine to control the ship, also ships become more faster.

8. What's this?

A: The Erie Canal is a canal in New York that originally ran about 363 miles from Albany, New York, on the Hudson River to Buffalo, New York.

9. What might explain the rise of Protestant congregations beginning approximately around the 1820s? (hint: a related answer might also explain the modest rise of the number congregations in the 1720s)

A: The Immigrants explain the rise of Protestant congregations beginning approximately around the 1820s.

10. Who are the three figures depicted here? What's happening in this image?
A: The three figures depicted here is God and Jesus Christ and Joseph Smith. Joseph Smith’s first