The invasion of Yugoslavia, also known as the April War, was a military operation of the Axis countries (Germany, Italy, Hungary) against Yugoslavia during...
The Norwegian operation was a military operation of Nazi Germany against the Norwegian Kingdom, beginning on April 9, 1940, and lasting until June 8....
Typography was invented twice: once in China and Korea and in medieval Europe. In China, printing was invented, according to some data (Julien, "Documents...