The history world is all atwitter with a document, recently discovered at a flea market in Ohio, that may include a note written by Abraham Lincoln on the day he died.

As if this earth-shaking news weren’t enough, presidential scholars are now rushing to authenticate a collection of priceless nuggets from several former Commanders-in-Chief found this week on a used BlackBerry at a thrift store in Maryland:

Good play (yawn!) Wish I’d stayed home. Shall sleep in the morrow.

Running for my train. Good to get out of this DC heat!

I love Buffalo! Pan-Am Expo is a GREAT fair!

Texas makes me Hungry. Mmmmm . . . time for lunch at the Merch Mart.