http://www.arkive.org/ has been crawled 526 times going all the way back to December 5, 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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January 15, 2011

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January 22, 2011

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February 5, 2011

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February 10, 2011

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February 12, 2011

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February 15, 2011

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March 5, 2011

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Apr
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April 21, 2011

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April 30, 2011

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May
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May 18, 2011

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May 19, 2011

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May 22, 2011

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June 4, 2011

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June 24, 2011

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Jul

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July 21, 2011

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July 25, 2011

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Aug
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Sep
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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.arkive.org/ was crawled by the Wayback Machine, not how many times the site was actually updated. More info in the FAQ.