Cataclysmic Beginnings:The essay begins with a catastrophic event that destroys the ancient civilizations of Atlantis and Lemuria. This cataclysm reshapes the world's geography, leading to the emergence of new lands and the displacement of surviving peoples.The Age of Darkness:Following the cataclysm, humanity enters a dark age where scattered tribes struggle for survival. Over time, these tribes evolve and form the first primitive societies. The essay mentions various races and their roles in the early stages of this era.Rise of the Hyborians:The Hyborians, a nomadic people named after their god Bori, begin to migrate and conquer other territories. Over centuries, they establish powerful kingdoms and spread their influence across the world. Howard describes the Hyborians as tall, tawny-haired people who are destined to dominate the known world.