Blue Whales, the largest mammals on Earth, have hearts that weigh 1,000 pounds and are approximately six feet wide.

The dining hall of Hogwarts in the Harry Potter films was modeled after the Great Hall of Christ Church Cathedral in Oxford, England.

In 1881 three U.S. Presidents served: President Rutherford B. Hayes started the year, President James A. Garfield took over in March, and Vice President Chester Arthur became president in September following the death (from assassination) of President Garfield.

Rats don’t vomit (they lack the diaphragm strength and neurological response to even do so) which is why rat poison is so effective.