But It's Been Going on Since ...
So how far back does this fad go? How about to one of the people who invented the freaking camera, photography pioneer Robert Cornelius? While the name makes him sound like a gruff industrialist who spends his spare time thinking up new ways to exploit child laborers, Cornelius was actually an amateur chemist who helped make important refinements to the daguerreotype (film's cooler-sounding predecessor). And what did he do with his great innovation?
Via Library Of Congress
"Going to hit the big frat party tonite!!!!1 #SWAG #YOLO"
The Library of Congress believes that this is the first portrait taken in America, and it might be the first portrait taken ever. So of course it's a selfie, featuring Cornelius (Bobby C-Dawg to his friends) sitting with his arms crossed like he's trying to casually look all badass. But OK -- if you're taking the first portrait in history, we understand why you'd want to be in it. Unfortunately, Cornelius started a trend that's carried through the ages to create the terrible flash-in-the-bathroom-mirror shots we all know and loathe today. Here's a woman from 1900 using the mirror trick:
She then tweeted it to her friends by attaching it to a messenger pigeon.