As with everything else in the world, the world of advertising has changed a lot over the decades. Advertising is something brands, labels, people, and businesses have done for many years now. The world is covered in advertisements for just about anything and everything. There aren't many ad-free spaces left anymore, that applies to the real world and to the Internet. Back in the day, though, ads looked way different, and they were even kind of interesting.

Back then, there were no digital ads, of course, all ads were seen on paper, in magazines, or up in windows. The ads themselves featured illustrations and images that just scream old-school. It is hard to pinpoint what exactly makes people know that these ads are old, but the low prices, funky fashion, and other interesting elements are key features.

It's neat to go back and compare the world of advertising back then to how it is now. Here we have collected 25 ads from many different companies that were probably pretty revolutionary for their time. Recognize any of these brands and products?