What caused the downfall of Ghana Climate change and Berber battles

Songhai invasion and disease

Internal revolts

Depletion if the salt mines

a reason that was key to coolidge's victory in the 1924 presidental election was that; democratic party supporters were split in the north and south.

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.

idk