What was the original failed experiment at 3M that eventually led to the invention of Post-it Notes?

In the world of famous products, some inventions seem deceptively simple yet transform how we work and organize information. The Post-it Note is one such revolutionary product that emerged from an unexpected discovery. This poll tests your knowledge about the fascinating origin story behind these ubiquitous sticky notes that have become essential tools in offices, homes, and creative spaces worldwide.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

An attempt to create a permanent super-strong adhesive that accidentally produced a weak, repositionable one
A failed experiment to develop transparent correction tape that left behind removable yellow residue
A manufacturing error in producing tape backing that created paper with adhesive already applied
A deliberate attempt to create temporary bookmarks for hymnals that wouldn't damage pages