What compromise do you think would have prevented the Civil War from occurring ​

The only compromise that could have headed off war by then was for the Southern states to forgo secession and agree to abolition.

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.