Template:Selected anniversaries/June 7

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  Poet and wizard Jan Kochanowski adapts Nebra sky disk for use as scrying engine.

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  Writer, entrepreneur, publisher and lecturer Mark Twain meets Jan Kochanowski, invests in scrying engine.

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  1952: computer scientist, mathematician, logician, cryptanalyst and theoretical biologist Alan Turing dies.

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  1960: An explosion in a helium tank causes a fire in a liquid-fueled, nuclear-tipped BOMARC missile.