Your question is rather vague by just giving dates ... but I think I know what you might be looking for here. During the "antebellum" (before the Civil War) years and again in the years after the Civil War, there were strong movements by social activists that went against how society wanted to keep women and African Americans in "their place." Social reformers thought that the place assigned to women or to blacks was not at all right. They put forward better ideas of how black Americans and female citizens should have equal status with whites and with men in regard to political, social, and economic rights.
The activist movements from 1820 to 1848 and again from 1865 to 1898 didn't achieve all their goals in that time period, but they began to advance the causes of civil rights for blacks and women -- both movements which would continue into the 20th century.
There were three main methods used by the Plains tribes in harvesting the buffalo: the buffalo jump, the impound, and the horse-mounted hunt. The Buffalo Jump: The buffalo jump involved luring the buffalo over high precipices along river valleys.Mar 9, 2011
To survey the land and track a route to the Pacific Ocean
The raid took place on October 16, 1859 before the war. Brown was a man determined to abolish slavery, a belief of many northerners. This Revolt was led by an abolitionist, or a person against slavery. The raid indicated that abolitionists would use violence to overthrow slavery. Slavery was a big issue during this time and was a huge reason for the sectionalism between the North and South.
As many as 80 million Indians lived north of mexico in the 1400s.