We say ‘hello’ because of Thomas Edison. When Alexander Graham Bell patented the telephone in 1876, ‘hello’ was mostly used to grab attention (‘Hey, you!’).  Bell favored ‘ahoy’ as a greeting, but Edison envisioned phones as business tools with always-open lines that didn’t “need a call bell as Hello! can be heard 10 to 20 feet away.”  Edison won the battle, but Bell was so tied to ‘ahoy’ that he used it for the rest of his life.  And guess what? I found a recording of Bell’s voice, and it gave me chills!  Cuz I’m a nerd.  But anywayzz here’s Alexander… (, , )
The first person to go over Niagara Falls in a barrel was a 63-year-old retired teacher. In 1901, Annie Edson Taylor completed the stunt inside a pickle barrel in hopes of becoming famous.  When pulled from the water nearly 20 minutes later, she emerged from the barrel, battered and bloody, and said:  “No one ought ever to do that again.”  (, )