What if the U.S. presidents were online, and you could follow them? Was Teddy Roosevelt a cute kid in his Throwback Thursday photos? Whose no-shave November facial hair is better, Lincoln's or Taft's? And just how many selfies did JFK take in the oval office? From how they grew up to how they led, learn what historians know about these incredible leaders and find out what they're saying to each other! Follow the leaders!