Briefly explain ONE event or idea from the period 1844–1877 that could be used to support or refute the views expressed in the document.

[The House is] desirous to obtain a full knowledge of all the facts which go to establish whether the particular spot on which the blood of our citizens was so shed was or was not at that time our soil… (First resolution) Whether the spot on which the blood of our citizens was shed, as in his messages declared, was or was not within the territory of Spain, at least after the treaty of 1819, until the Mexican revolution… (Second resolution) Whether that spot is or is not within the territory which was wrested from Spain by the revolutionary Government of Mexico.”— From Abraham Lincoln’s “Spot Resolutions,” 1847

The answer is below

Explanation:

James Knox Polk, the then United States president was in 1846 claimed that American soldiers were killed on American soil. The purpose is to justify him beginning the Mexican-American war.

However, his assertion was not true, because the American soldiers he referred to were killed between "The Rio Grande and the Nueces River, " which is not part of American territories.

Thus, this actual event negates what Polk said but supports the position of Abraham Lincoln on the issue. Abraham Lincoln believed that those American soldiers were not shot in America.

a) trade was one of the most effective ways.