Which of these states was admitted to the union in the 20th century? vermont arizona california?

1.) irish.

2.) settlers could obtain cheap land nearby

3.) steam engine

explanation:

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.