Introduction1 Ancient Beginnings2 The Not-So-Dark Ages: Inquiry and Inquisition in Medieval Islam and Europe3 The Great Disruption: Luther, Gutenberg, and the Viral Reformation4 The Seeds of Enlightenment5 Enlightenment Now6 Constructing the Bulwark of Liberty7 Revolution and Reaction8 The Quiet Continent: The War on Free Speech in Nineteenth-Century Europe9 White Man’s Burden: Slavery, Colonialism, and Racial (In)Justice10 The Totalitarian Temptation11 The Age of Human Rights: Triumph and Tragedy12 The Free Speech Recession13 The Internet and the Future of Free SpeechConclusion