A dog may be a human's best friend, but cats aren't far from it either. Worshiped since the times of ancient Egypt, these lovely furry creatures sure know ways to people's hearts. Therefore, it will probably come as no surprise that even long before the era of the internet and YouTube, cat videos were already popular. Back in 1894, inventor Thomas Edison filmed two kittens "boxing" inside a ring, and this just proves the fact that humans have long been obsessed with cute cat content way before it was cool.