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"Changes" is a tool you can use to identify, and display, changes in the content of archives of URLs.
First you can select two different archives for a URL, based on an interface that shows the degree of relative change from one archive to another.
Then you can see the replay of the two URLs you select, side-by-side, with changes highlighted in Blue and Yellow.
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2013

CALCULATING
Fetching http://chemistry.georgetown.edu/index.html captures for year 2013
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