Thank you for posting your question here at brainly. Among the choices provided the event played the greatest role in creating these conditions in the south during the antebellum era is the invention of the cotton gin by eli whitney in 1793. I hope it helps.
Answer:
The application of scientific knowledge for practical purposes, especially in industry.Machinery and equipment developed from the application of scientific knowledge.
Bicameral system, a system of government in which the legislature comprises two houses. The modern bicameral system dates back to the beginnings of constitutional government in 17th-century England and to the later 18th century on the continent of Europe and in the United States.
1890s African Americans began working on subway Construction
