Northern: No slaves, mostly republican (our democrat) ideas, economy was based on trade and business
Southern: Slavery was supported, mostly (our idea of) republican, their economy was based on plantations and slaves
Hope this helps! Please let me know if I'm wrong or missed something. :)
Spain closed the lower Mississippi River to American trade because if American relations with Great Britain were poor, affairs with Spain were worse. Spain, which held Florida as well as lands west of the Mississippi River, was anxious to halt American expansion into the territory it claimed. As a result, Spain closed the lower Mississippi River to American shipping in 1784.
