"Am I conservative or liberal?" is one of the most searched political questions online, and it usually leads to a quiz promising instant clarity. But the labels behind that question have a long, surprisingly specific history, and the science of measuring political identity is more nuanced than a single quiz score.

Here are verified facts about where the terms "conservative" and "liberal" come from, how political scientists actually study ideology, and what quizzes can (and can't) tell you about yourself.