Is a term for the attitude prevalent during the 19th century period of American expansion that the United States not only could, but was destined to, stretch from coast to coast.
The fourth Chief Justice of the Supreme Court of the United States (1801–1835). His court opinions helped lay the basis for United States constitutional law and made the Supreme Court of the United States a coequal branch of government along with the legislative and executive branches
Harriet Tubman escaped slavery to become a leading abolitionist. She led hundreds of enslaved people to freedom along the route of the Underground Railroad.
Abraham Lincoln became the United States' 16th President in 1861, issuing the Emancipation Proclamation that declared forever free those slaves within the Confederacy in 1863.