Answer:
pickle pickle pickle pickle
<span>Harriet Tubman's primary role in the effort to abolish slavery was that he established the "Underground Railroad" (not an actual railroad), which helped slaves escape from the South to freedom. </span>
Cotton gin was invented by Eli Whitney in 1793
Answer:
The truimph of the proletariat.
Explanation: Marx believed that workers would ultimately truimph and capitalism would be defeated