http://www.dopplr.com/traveller/davidorban/feed/mytrips/0b5af169af306a8cc60e9c01b22b3bdd3ecf7c6fb7e6fb1aa72ff4ae8707bf04/all has been crawled 2 times going all the way back to March 27, 2013.

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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March 27, 2013

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March 29, 2013

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Note

This calendar view maps the number of times http://www.dopplr.com/traveller/davidorban/feed/mytrips/0b5af169af306a8cc60e9c01b22b3bdd3ecf7c6fb7e6fb1aa72ff4ae8707bf04/all was crawled by the Wayback Machine, not how many times the site was actually updated. More info in the FAQ.