The primary concern was related to the number of congressmen from free and slave states. If Missouri was admitted into the Union as a slave state, the congress would have more Southerners than Northerners in the congress which would be bad for slaves everywhere. Northerners therefore asked that if Missouri enters as a slave state, Maine has to be separated and enter as a free state.<span />
I believe it was the New Jersey Plan, which proposed that "e<span>ach state was equal regardless of the size of its population."</span>
was based on race because white people thought they were the superior race
Texas, during this time most of the immigrants to the United States are from Mexico and Latin America.