http://osgoode.yorku.ca/media2.nsf/58912001c091cdc8852569300055bbf9/09a3f3acc6458ec185257378005d3c71!OpenDocument has been crawled 5 times going all the way back to October 27, 2007.

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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April 3, 2010

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Note

This calendar view maps the number of times http://osgoode.yorku.ca/media2.nsf/58912001c091cdc8852569300055bbf9/09a3f3acc6458ec185257378005d3c71!OpenDocument was crawled by the Wayback Machine, not how many times the site was actually updated. More info in the FAQ.