Which empire was ruled by Genghis Khan?

In what year did the Titanic sink?

What wall divided Berlin from 1961 to 1989?

Which ancient wonder was located in Alexandria, Egypt?

What is the second largest city in Japan?

During World War I, the allies, Britain, France, the USA primarily fought against Germany and which two major forces?

In June, 1994, the French, British and Americans celebrated the 50th anniversary of what event?