developed the steel tip plow that cut through the hard packed sod of the prairies.

a system of selecting people for required military service that is not optional.

A belief that ultimate power resides in the people to determine whether an area will be free or slave

A person who chooses to die for a cause he or she believes in

a fugitive slave that later acted as a conductor on the Underground Railroad. She led over 300 slaves to freedom.

Commanding officer of the Confederate forces during the Civil War.

decree issued by Abraham Lincoln that freed all slaves in rebelling states of the Confederacy.

the General at the Battle of Shiloh and Union officer that the Confederates surrendered to at Appomattox Courthouse, ending the Civil War.

invented a way to communicate with others over long distances by using wires that carried electric impulses from one location to another.

to officially leave an organization- to break away.

the first African American group to serve for the Union Army during the Civil War

constitutional guarantee that no one can be held in prison without charges being filed.

belonged to the Republican Party and ran for president on a platform of anti-slavery- 16th President

a group of workers with the same trade or skill

a system of safe houses that helped fugitive slaves escape to the North and freedom.