Sheppard's efforts contributed to the contemporary debate on European colonialism<span> and imperialism in the region, particularly amongst those of the African American community.</span>[2]<span> However, it has been noted that he traditionally received little attention in literature on the subject.</span><span>[3]</span>
The 1828 Tariff of Abominations was opposed by the Southern states that contended that the tariff was unconstitutional. The Southern states whose livelihoods were being harmed firstly by having to pay higher prices on goods the South did not produce, and secondly increasing taxes on British imports made it difficult for Britain to pay for the cotton they imported from the South. Some New England industries were also opposed to the bill because it included the clause by which the taxes on raw materials increased considerably.
