In 1790 not a pound of cotton was exported from the United States. In 1793, Eli Whitney, of Massachusetts, who was temporarily in Georgia, invented his Cotton Gin, one of the earliest and most remarkable of the many great inventions of Americans. This invention was productive of most important and far-reaching consequences. It caused an industrial revolution in the South by making cotton the great staple. The production increased by leaps and bounds, bringing great wealth and increasing social and political power to the South. With the earlier form of the new invention the seeds could be removed from about one hundred pounds of cotton a day. In 1792, 192,000 pounds were exported to Europe; in 1795, after Whitney's invention, nearly six million pounds were exported. The value of the export in 1800 was $5,700,000; in 1820, it was $20,000,000. These figures represented enormous wealth in those days. Whatever sentiment in the South against slavery had survived the Constitutional period now disappeared completely. Cotton brought about a new view, and from being an evil to be eradicated in some way in the course of time, it was now regarded as absolutely necessary to the social and political welfare of the South. The strongest of human passions, avarice, ambition and worldly interest now bound the South closer than ever to slavery. The slaves produced cotton--which was wealth--and wealth brought independence and social distinction; besides the slave was a political advantage of great importance, because five of them, without any voice in the matter themselves, counted as three white persons. Under these auspices grew the Slave Power, soon to be a bold, threatening and overbearing faction in the nation. While the South and the Slave Power were thus being prepared for great wealth and political standing, circumstances were working in the North to counteract and balance, in a way, this development. New England was beginning to feel the first impulses of a great industrial development; interest in commerce and manufacturing was awakening, and inventive genius, called into action by economical necessity, was at work, and the use of machinery and mechanical inventions was increasing. New England was shortly to be covered with cotton and other factories. The war between France and England opened to the United States almost a monopoly on the West Indies trade in 1793, and it was the North that received the greatest benefit from this trade. Congress in 1791 had established the United States Bank at Philadelphia, with branches in all of the important cities, and this aided the North more than the South. In short, the North was developing that capital, energy, ingenuity and thrift and use of mechanical inventions, the lack of which was the greatest weakness of the South. The settlement of the Northwest Territory by pioneers from the northern States is also to be kept in mind.