Early 2013 saw the explosion of the selfie. While the word existed before, this was the year it became a cultural verb. Smartphones like the Samsung Galaxy S4 (released April 2013) boasted a 2-megapixel front camera—not for video calls, but for you. Instagram, purchased by Facebook in 2012 for $1 billion, matured in 2013 into a lifestyle diary. Filters weren’t just for sunsets anymore; they were for your latte, your gym shoes, and the bored expression on your face in an elevator mirror.