WaybackMachine

361 Billion web pages saved over time

 "The original idea for the Internet Archive Wayback Machine began in 1996, when the Internet Archive first began archiving the web... "  http://archive.org/web/ 

This is one of the places I go to find old web pages. All you need to do is type the old URL into the search box and then press ENTER. The result: a calendar, with the dates the page was updated circled in blue. CLICK on the date to view the page.