The word "unfriend" appeared in print all the way back in 1659.
Thirty years ago this month, the groundbreaking educational science series debuted on PBS.
Here’s how to steer a predictable discussion about teamwork and manners to one on sex and panda discrimination.
"Mark my words: a combination airplane and motorcar is coming. You may smile, but it will come."
They won't even see it coming.
The mysterious Confederate deserter who became John Wilkes Booth's right-hand man.
©2016 Mental Floss, Inc. All rights reserved. Mental Floss® is a registered trademark owned by Felix Dennis. mentalfloss.com is a trademark owned by Felix Dennis.