Tariff
A tariff is called an optimal tariff if it's set to maximize the welfare of the country imposing the tariff. It is a tariff derived by the intersection between the "trade indifference curve" of that country and the offer curve of another country. In this case, the welfare of the other country grows worse simultaneously, thus the policy is a kind of "beggar thy neighbor policy". If the offer curve of the other country is a line through the origin point, the original country is in the "condition of a small country", so any tariff worsens the welfare of the original country.
Tariff of 1833
The Tariff of 1828, enacted on May 19, 1828, was a protective tariff passed by the U.S. Congress. It was the highest tariff in U.S. peacetime history up to that point, enacting a 62% tax on 92% of all imported goods. The goal of the tariff was to protect northern U.S. industries by placing a tax on low-priced imported goods, which had been driving northern industries out of business. Nevertheless, the South strongly resisted the Tariff of 1828 for several reasons. Firstly, they were forced to pay higher prices on goods that the region did not produce, and secondly, the reduced importation of British goods made it difficult for the British to pay for cotton imported from the South. In essence, the South was simultaneously forced to pay more for goods and to face reduced income from sales of raw materials. These unfortunate results caused many in the South to refer to the Tariff of 1828 as the Tariff of Abominations.