If you see a website and are quite impressed by it looks, you would want to know how it looked some time back and what modifications or changes it has done. You just want to know some interesting stuff about internet. Then read on.
It is quite handy to see it because if a website is performing really good today, it is always interesting to look how it looked back some time back.
Well, the tool that enables it is Internet Archive Wayback Mechanisms.
Just enter the url of the website you want to see how it look back some time back, and you can get the results.
Well, this is how Google appeared on 8th Feb 1999
|How Google looked in 1999|
You can try it yourself and see how these websites looked back in time.
Some websites exclude themselves from this listing like if you search for facebook, you will not be able to see it back in time.
This is done by changing robots.txt.
If you want to see robots.txt of facebook, go here
It simply implies that facebook has restricted Internet Archive Wayback mechanism to crawl facebook.
If you have some more interesting screenshots to share, do so in comments.