"Nationalism to Sectionalism": HTML5 Crossword

Across

4. The party created by Andrew Jackson and his supporters as a result of the Democratic-Republican party being split due to rivalry between him and John Quincy Adams (10)
5. American painter who helped establish the Hudson River School (4)
7. The belief that the interests of the nation as a whole are more important than regional interests or the interests of other countries (11)
8. To reject a law (7)
9. Young women hired to work in textile mills in Lowell, Massachusetts (11)
10. The long march the Cherokee were forced to take away from their ancestral lands. Many died (12)
11. The party created by John Quincy Adams and his supporters as a result of the Democratic-Republican party being split due to rivalry between him and Andrew Jackson (18)
12. The term for political power held by ordinary Americans (19)
14. The belief that one's own section, or region, of the country is more important than the whole (12)
15. The term for when a president replaces many government officials with supporters (12)
17. Wrote "Democracy in America" (11)
19. Man-made river that connected the Great Lakes with the Hudson River and the Atlantic Ocean (9)
20. Brought the design for cloth weaving machines from Britain to the U.S., starting the American textile industry (7)

Down

1. To leave (6)
2. Fifth president of the U.S.; during his presidency, the economy grew rapidly, and a spirit of nationalism and optimism prevailed, which gave the time the nickname the "Era of Good Feelings." (7)
3. Road that stretched 800 miles west from Cumberland, Maryland, to Vandalia, Illinois (12)
6. When South Carolina threatened to secede if the federal government attempted to enforce the Tariff of of 1816 (19)
13. Speaker of the House who came up with the American System (4)
16. Law President Jackson pushed through Congress that gave him the authority to use military force to collect the tariff in South Carolina (9)
18. Published An American Dictionary of the English Language (7)