The difference between influenza and the common cold. Both influenza and the common cold are viral respiratory infections (they affect the nose, throat, and lungs). Viruses are spread from person to person through airborne droplets that are sneezed out or coughed up by an infected person.
Before the gin was invented, cotton was not... One of the major effects of the cotton gin on slavery was the increased need for slaves to keep up with the profitability that came with its invention. Before the gin was invented, cotton was not... One of the major effects of the cotton gin on slavery was the increased need for slaves to keep up with the profitability that came with its invention.
The cotton gin increased the production of cotton massively, so there was more of a requirement for slaves. The South then became the world's leading cotton manufacturer, so the need for slaves was there more than ever. Eventually, the North will become aware of the evils of slavery through books and other sources and will start to act on it.