The Ka-Bar Knife (pronounced "KAY BAR"), revered combat knife of the United States Marine Corps got its name thanks to a testimonial letter sent to the company by a fur trapper in the 1920s. The trapper wrote, in very broken English, that he used a Union Cutlery knife to kill a wounded bear after his gun jammed. All that was legible of his scrawled writing was k a bar. So honored were corporate executives that they used the phrase as their trademark, Ka-Bar. In 1952, the Ka-Bar name had achieved such fame that the company changed its name to Ka-Bar Cutlery.
The television series Bonanza was created specifically to provide a product for RCA's new color TV sets.
WD-40 stands for Water Displacement, 40th attempt. That's how many tries it took Norm Larsen, a chemist, to concoct a formula that would prevent corrosion by displacing water.
Major George Welch (USAF) was the first pilot to break the sound barrier. Welch was the chief test pilot of the F-86 and completed the flight at Muroc AFB, California on October 1st, 1949. He went supersonic a second time on October 14th, about thirty minutes before Chuck Yeager flew the X-1 through the sound barrier. Yeager got credit for it because the capabilities of the F-86 were kept classified until just recently.