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.
Emancipation was justified by a military necessity to preserve the Union. âIf the Proclamation of Emancipation was essentially a war measure, it had the desired effect of creating confusion in the South and depriving the Confederacy of much of its valuable laboring force.