There have always been toasters.
Think about the times that were before you were born. Can you prove they even existed? I mean, there are artifacts, there are accounts, but you can find those at Disneyland. All you really know about the past are the stories thereof, and stories - humankind's defining achievement - are in the end, just stories. They can be true, false, or a combination of the two.
All I know is that there have always been toasters.
Oh, you can read stories about a time when there were not toasters. I don't believe it, myself. So far as I know, toasters have always been part of the world.