It's always fun to take a look back on the ways life used to be different many years ago. Things have certainly changed a lot in quite a relatively short amount of time.

New, fresh faces have appeared in the media, many events have happened and, of course, technology has advanced rapidly and incredibly.

Though it was only a few decades ago, the 1980s, 1990s, and even the early 2000s feel like totally different planets from what is out there today. Despite this, these influential celebrities, trends and moments from the past have shaped the way the world is today.

Some of these people are still around, making their mark on the world, others are not, but all of them have had some impact on someone's life in some way.

Reddit's "Old School Cool" is a community full of the coolest photos from the past. Many are unseen or uncommon photos of celebrities everyone knows and loves, and others are interesting photos of users' families that are a snapshot of a normal life back in the day.

Here are 15 super rad pictures that may trigger some serious nostalgia for some folks.