I was just looking at one of my favourite websites, the web archive, which is helpful to dive into the past. Or at least that part of the past that can be captured digitally (web, audio, video,…).
In the web section, the way back machine, one can check how a particular website looked like many years before. Check for instance the modern look of the EBI website today. Now have a look to this website on 6 June 1997. What a change, right? Most links are active, so you can inspect services available at that time, who was around, etc. If you wish to explore the website at some other moment in time, there is a navigation bar on the top the bar which take you to the other available captures.
Warning: this is a serious time sink!