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    Artwork for 99% Invisible
    Episode

    100 Objects #5: Blue Back Speller

    99% Invisible · Jun 19, 2026 · 46 min
    Episode page

    Why did an ordinary schoolbook become so treasured that enslaved people risked their lives to possess it?

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    9:33

    The British Museum is full of stolen artifacts

    Vox
    6.7M views • 6 years ago