<span>The election of 1800. The growing partisanship between the Federalist camp, led by John Adams, and the Democratic-Republican camp, led by Thomas Jefferson, resulted in a bitterly contested presidential election in 1800.</span>
American System is an economic plan devised by Henry Clay and John C. Calhoun
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.
Benjamin Franklin invented the lightning rod.
