Neptune discovery telescope. The telescope at New Berlin Observatory (1835â1913), that discovered Neptune, was an achromatic refractor of 9 Paris inch (9.6 English inches or 24.4 cm) aperture made by the late Joseph Fraunhofer's firm, Merz und Mahler.
The southern states needed these slaves because the southern states had more farms and plantations than the North did. Not everyone could afford slaves; slaves were really expensive. They were expensive to buy because they had to be feed and taken care of.
The best evidence that states' rights was a secondary interest of the southern states is the Confederate Constitution which forced states to accept central authority on the issue of slavery and required all new territories in the Confederation to become slave states, regardless of the popular will of the people of the new state.