International Edible Book Day , Jean-Anthelme Brillat-Savarin , Libraries When Horses and Human Keisters Collide Thirty-thousand years ago, horses began to appear in cave-paintings. Their domestication occurred between 4000-3500 BCE. The Botai culture of modern Khazakstan, land of the superb Cossack horsemen, were early masters of horseback riding. The Blackfoot tribe