Manifest Destiny & Underground Railroad;-

2. a machine that quickly and easily separates cotton fibers from their seeds
6. an office or department for transacting particular business.
10. a diplomatic incident in 1861 during the American Civil War that threatened a war between the United States and the United Kingdom
12. the constitutional theory that individual states can invalidate federal laws or judicial decisions they deem unconstitutional
15. declared all persons born in the United States to be citizens, "without distinction of race or color, or previous condition of slavery or involuntary servitude."
16. a speech that U.S. President Abraham Lincoln delivered during the American Civil War at the dedication of the Soldiers' National Cemetery in Gettysburg

1. a territorial organic act that created the territories of Kansas and Nebraska
3. The process by which a legislative body or other legally constituted tribunal initiates charges against a public official for misconduct
4. a gold rush that began on January 24, 1848, when gold was found by James W. Marshall at Sutter's Mill in Coloma, California
5. The 19th-century doctrine or belief that the expansion of the US throughout the American continents was both justified and inevitable
7. was the 23rd quadrennial presidential election, held on Tuesday, November 7, 1876
8. a borough and town in the U.S. state of Pennsylvania
9. was an agency of early Reconstruction, assisting freedmen in the South
11. A American abolitionist and social activist. Born into slavery,she escaped and subsequently made some 13 missions to rescue approximately 70 enslaved people
13. located on an island in Charleston Harbor and is only accessible by boat
14. a military campaign of the American Civil War conducted through Georgia from November 15 until December 21, 1864, by William Tecumseh Sherman