Natural rights and the right to resist tyranny are central here. John Locke is the thinker who links those ideas to government by consent in his Two Treatises on Government. In this work, he argues that people are born with natural rights—life, liberty, and property—and that governments exist to protect those rights. Because power is derived from the people, if rulers become tyrannical and violate these rights, the people not only may but morally may withdraw their consent and establish a new government. This view laid the groundwork for liberal political philosophy and influenced revolutionary movements that justify overthrow of tyrannical authority. The other thinkers were not the authors of this work and did not articulate the same justification for rebellion: Hobbes favored a strong sovereign to prevent chaos, Montesquieu emphasized the separation of powers, and Voltaire advocated for civil liberties but did not write these treatises.

Quipu are knotted cords used for recording information, and the Inca Empire is the civilization most associated with this method of administration. Across their vast Andean realm, quipu tracked censuses, taxes, tribute, labor obligations, and supplies, serving as a non-writing system that helped manage resources. The knots and cord structure encode numbers in a decimal system, with color and placement signaling categories like region or type of good. Other civilizations listed relied on writing or pictorial records—Maya with its glyphs, Aztec with codices, and Mali more often on oral tradition and other forms of record-keeping—so quipu stands out as the hallmark method for the Inca.

Latitude and longitude create a global coordinate system that lets us pinpoint any place on Earth with precision. Latitude measures how far north or south a location is from the equator, while longitude measures how far east or west it is from the Prime Meridian. By turning a place into a pair of numbers, historians and geographers can map where events happened, trace ancient trade routes, compare sites across different times, and analyze spatial relationships—everything from where cities grew to how empires expanded. While longitude has a connection to time zones and latitude to climate patterns, the purpose of these coordinates is to locate places, not to predict climate or determine population density. Population density relies on counting people in a given area, not on the coordinate system itself.

The main idea tested here is why some political thinkers argue for a strong centralized authority to prevent chaos. Thomas Hobbes, in Leviathan, paints a bleak picture of the state of nature—life would be “solitary, poor, nasty, brutish, and short” without a controlling power. To escape that fearfully anarchic condition, people enter into a social contract and cede their individual rights to a sovereign who holds universal authority. That sovereign’s power must be almost absolute to keep order, because any hint of weakness invites conflict and the breakdown of peace. This is why Hobbes argues that an absolute ruler—often envisioned as a strong monarchy—is necessary to maintain security and civil society. Other Enlightenment thinkers offered different visions—Locke argued for government with limited powers and protection of natural rights; Rousseau emphasized the general will and popular sovereignty; Voltaire critiqued abuses and defended civil liberties—but Leviathan is Hobbes’s clear case for why absolute monarchy is needed to prevent chaos.