Final answer:
Slavery grew in the early 1800s due to factors such as the invention of the cotton gin, the booming cotton economy, and the expansion of plantation slavery.
Step-by-step explanation:
Slavery grew in the early 1800s due to several key events and factors.
One important factor was the invention of the cotton gin by Eli Whitney in 1794, which made large-scale cotton agriculture profitable and increased the demand for slave labor.
The expansion of plantation slavery was also fueled by the booming cotton economy and the fertile lands in newer states to the southwest, such as Alabama and Mississippi.
The Louisiana Purchase of 1803 further contributed to the growth of slavery, as questions arose about whether the new lands would be made slave or free.
Learn more about growth of slavery