The best dogs in history

For thousands of years, dogs have been humankind's best friends. Stories of their heroism, compassion and connection with us are legend. There's even a dog that has been elected Mayor of a town in America three times.

Writer Jadan Carroll collects some of the best tales of dogs who have changed the course of history or changed the course of their owner's lives in a new book, (Definitely) The Best Dogs of All Time

A statue of Roosevelt and his dog, Fala

Duke, a Great Pyrenees who is the Mayor of Cormorant, Minnesota

President Reagan and Lucky aboard the Marine One helicopter. (Presidential Pet Museum)

Statue of Morris Frank and the first seeing-eye dog Buddy

Hebert Hoover's Dog, King Tut.(Presidential Pet Museum)