The USS Nautilus becomes the world’s first nuclear-powered submarine.

Only a single fuel charge is needed for the sub to travel thousands of miles below the surface of the ocean.

George de Mestral receives a patent for Velcro, a hook-and-loop fabric.

De Mestral is inspired by burrs that stick to his dog’s fur. Closures made from Velcro are used on everything from shoes to baggage and sports equipment.