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52 illustrations
John Newton had blood on his hands. For years he commanded slave ships, transporting human beings across the Atlantic in conditions of unspeakable horror. He...
In 1977, NASA launched the *Voyager 1* spacecraft on a journey that would make history. To break free of Earth's gravitational pull, the probe had...
In 1983, a programmer named Richard Stallman launched the GNU Project with a radical idea: software should be free — not free as in no...
In John Bunyan's *The Pilgrim's Progress*, one of the most striking moments comes early in Christian's journey. He has been walking with an enormous burden...