Cotton is King Cotton Picking was laborious, backbreaking, hard, painful work. Slaves provided an indispensable source of labour and were integral to maintaining the economy of the south. King Cotton and Eli Whitney’s Slave Machine (Handout) - The invention of Eli Whitney’s Cotton Gin transformed southern agriculture. - The machine separates cottonseeds from the fibres which was previously a slow and painstaking process. - Each cotton gin could turn out 50 pounds of cleaned cotton a day, far more than the amount manual labour could produce. - Cotton exports grew dramatically and was extremely profitable. - Farmers turned to it and “King Cotton” soon displaced tobacco, rice and indigo as the primary Southern export and a lack of diversified industries in the south. - The economy of the south became completely dependent on Cotton. - In order to meet the demand, plantation owners turned to a relatively inexpensive source of labour – slaves. - Picking cotton was difficult, backbreaking work that required no real skill other than manual labour.