Jacob Abbott was a well-known 19th century historian who wrote biographies on various ancient leaders, including this one about the Persian leader Cyrus the Great. From the beginning: "CYRUS was the founder of the ancient Persian empire-a monarchy, perhaps, the most wealthy and magnificent which the world has ever seen. Of that strange and incomprehensible principle of human nature, under the influence of which vast masses of men, notwithstanding the universal instinct of aversion to control, combine, under certain circumstances, by millions and millions, to maintain, for many successive centuries, the representatives of some one great family in a condition of exalted, and absolute, and utterly irresponsible ascendency over themselves, while they toil for them, watch over them, submit to endless and most humiliating privations in their behalf, and commit, if commanded to do so, the most inexcusable and atrocious crimes to sustain the demigods they have thus made in their lofty estate, we have, in the case of this Persian monarchy, one of the most extraordinary exhibitions."