I need to find a version of a Wikipedia page from a specific date (specifically, October 14, 2010). Is there any way to view the revision history from before a specific time/date?
You can limit the history page to a specific date, then the first version listed is what was valid at that specified date:
Go to the history page of your desired page, and then add
(BTW, that page is where I found this info!)
Wikipedia has a "browse history" box at the top of each revision history box. This allows you to see the changes from before a specific year and month.