A short 20 years ago, cell phone engineers scoffed at the idea of text messaging. Who would want to send a written message when they could just call on the phone? It seems public demand won over the engineers' doubts, and texting is here to stay. It's said that the first text message was sent via pager in 1989 by Raina Forteni: the string of numbers 07734, which, when her friend turned the pager upside down, read "HELLO." True text messaging between cell phones didn't start happening until the mid-1990s, and it's only been since 2007 that a majority of mobile users are sending texts.