Brand Promise Pyramid 3M Post-Its@ Introduced in 1980 Developed by Art Fry, an engineer who was tired of slips of paper falling out of his hymnal Based on a unique adhesive composed of tiny particles; adheres instantly but less tightly than other adhesives23 Brand Promise Pyramid 3M Post-Its ® – Introduced in 1980 – Developed by Art Fry, an engineer who was tired of slips of paper falling out of his hymnal – Based on a unique adhesive composed of tiny particles; adheres instantly but less tightly than other adhesives