the fact that you needed many workers for the main cash crop in the south. The main cash crop in the south used to be cotton
The cotton gin.
An increase in the slavery used for agricultural production
The Missouri Compromise was a temporary band aid on the problem of slavery. Many in the South wanted slavery and many in the North did not. It made more people unhappy.
cotton gin
resistance and accommodation made for the slavery
Decrease
cause slaves are good
An increase in colonial shipbuilding.
It coincided with the growth of the industrial revolution. Great profits were made on the raw materials exported to Britain because labour was for free.
The demand for rice,indigo,tobacco, and cotton.
Mauritania made slavery a crime in 2007 and Niger made it a crime in 2003.
Northern workers opposed slavery; southern planters support it