[[Title: stories of the past and future]]
[[this is a massive fucking graph beyond the limits of normal transcription. you can find a full listing of data points at http:

www.explainxkcd.com
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index.php
1491 ]]
http:

www.explainxkcd.com
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index.php
1491

{{Title text: Little-known fact: The 'Dawn of Man' opening sequence in 2001 cuts away seconds before the Flinstones theme becomes recognizable.}}