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.
4. Emancipation was a military policy. As much as he hated the institution of slavery, Lincoln didnât see the Civil War as a struggle to free the nationâs 4 million slaves from bondage. Emancipation, when it came, would have to be gradual, and the important thing to do was to prevent the Southern rebellion from severing the Union permanently in two.