Explore Encyclopedia Britannica
Behind the Scenes: 7 Times Downton Abbey Stealthily Taught You History
Read this list
Characters in Literature
Take this quiz
“Nothing is in reality either pleasant or unpleasant by nature; but all things become so through habit.”
Science
submarine
Courtesy of the U.S. Navy
Any naval vessel that is capable of propelling itself beneath the water as well as on the water’s surface. This is a unique capability among warships,...
Read more