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

In the world of inventions and discoveries, some of the most impactful products came about by accident. Post-it Notes, now an office staple worldwide, has a fascinating origin story that exemplifies how product development can sometimes take unexpected turns. This poll tests your knowledge about the development journey of this iconic adhesive note that revolutionized how we leave messages and reminders.

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A failed attempt to create a super-strong adhesive for aerospace applications
A paper manufacturing process that accidentally created sheets with adhesive backing
A transparent tape prototype that left residue when removed from documents
A printing technology experiment that unintentionally created paper with tacky edges