Contrary to popular thought, the “Post-It” note was not invented specifically for that purpose. In 1968, scientist Dr. Spencer Silver was attempting to develop a super-strong adhesive for 3M. Instead he created a low-tack reusable adhesive. Spencer tried without success for five years to promote his solution within the company. It wasn’t until 1974, when Spencer’s colleague, Arthur Fry, came up with the idea to use the adhesive to anchor his bookmark. He used that framework to develop the idea into what we know today. Now the ubiquitous notes are used throughout the world for a variety of purposes.