Why did white southerners remain committed to the institution of slavery and its expansion in 1860?

it's lower nubia : ) good luck

the supreme court can hear any case it wishes as long as four justices agree to hear it.

hope this , give me brainliest answer =j

copernicus finished the first manuscript of his book, "de revolutionibus orbium coelestium" ("on the revolutions of the heavenly spheres") in 1532. in it, copernicus established that the planets orbited the sun rather than the earth. he laid out his model of the solar system and the path of the planets.