What caused the decline of Napoleon?

Significant causes of his downfall included the Continental Blockade, the Peninsular War, the Russian Campaign, and the direct role of Britain. ... Napoleon had aimed to stall the British economy, attempting to lead it into an economic depression by cutting off its trade links with mainland Europe.

while it was true that the cotton gin reduced the labor of removing seeds, it did not reduce the need for slaves to grow and pick the cotton.

explanation:

before eli whitney's invention of the cotton gin, picking and cleaning cotton was a slow, labor-intensive job. workers, usually slaves, had to pick the seeds from the cotton fibers by hand. this invention made it possible to grow large amounts of cotton on big farms and make money.