The problem is that the toilet was invented before sliced bread. In fact, I'm pretty sure most of the choices here were invented before sliced bread
Depends on how you define "sliced bread." If you literally mean bread that has been cut, then that happened a long time ago. But if you mean pre-packaged sliced bread, well, that's a different story. Sliced bread was first sold as such in the 1920s (I think...). After some research, I still have no idea when canned bread was invented. I can, however, confirm that it is disgusting.