Until observations and experiments conflict with the theory
a scientific theory is a description of an observed phenomenon while a scientific theory is an explanation of an observed phenomenon
It would allow slavery to spread north of the line established by the Missouri compromise. - Novanet
developing a plan and then implementing the plan
Because John Brown was outnumbered and he should have had a lot more people to start with. Few black or white Americans were prepared to join a rebellion led by a fanatical abolitionist.
Taney led the U.S. Supreme Court as Chief Justice in the Dred Scott decision.
The Republican Party
A factor that can be changed in an experiment is called an independent variable.
William Lloyd Garrison
One reason that the publication of Uncle Tom's Cabin infuriated people in the South was that southerners felt that it was an inaccurate depiction of Southern life (Stowe had never been to a Southern plantation).