The 2 Teenagers Who Run the Wildly Popular Twitter Feed @HistoryInPics

At the Atlantic, "Meet Xavier Di Petta and Kyle Cameron, ages 17 and 19, whose ability to build a massive audience from nothing may be unparalleled in media today."

They're social media entrepreneurs. I see them RT'd in my timeline all the time, although I like Michael Beschloss myself.

The last photo taken of Hachikō, the dog who waited 9 years after the death of his master until he too passed away. pic.twitter.com/w6NLZjDrV2

— History In Pictures (@HistoryInPics) January 23, 2014