Five cannons found from the famed pirate’s ship.
What did the science-fiction writer get right, and wrong?
In honor of the 35th President, take a look at a few lesser-known facts about JFK.
It’s the 150th anniversary of Lincoln’s most famous speech.
Try your luck at this 8th grade test from 1912.
Take a look at this interactive animation, showing Earth’s history with impacts.
Heads Up tackles another reader-submitted question.