http://www.howstuffworks.com has been crawled 3,398 times going all the way back to December 12, 1998.

A crawl can be a duplicate of the last one. It happens about 25% of the time across 420,000,000 websites. FAQ
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February 9, 2013

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February 22, 2013

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May
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Jun
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Aug
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Sep
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Oct
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Nov
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Dec
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Note

This calendar view maps the number of times http://www.howstuffworks.com was crawled by the Wayback Machine, not how many times the site was actually updated. More info in the FAQ.