Although we're just two decades into the 21st century, the fast pace of modern history led to the formation of not one but five years in just two decades.
Continue Reading The youngest countries in the world, 5 countries born in the 21st century
These are the images of the interiors of World War 1 submarines. Dangerous tin cans that look like real mechanical nigthmares.
Continue Reading The nightmarish insides of World War I submarines