Including the incumbent post holder, Boris Johnson, fifty-five people have served as Prime Minister of the United Kingdom. How much do you know about them?

Television shows such as The Crown have increased our fascination with the current Queen and the institution over which she presides, but how much do you know about Britain's Royal Family?

How much do you know about the 1940s? Test your knowledge with these multiple choice questions.

With more than two-hundred years of history, the US presidential election has produced some wonderful moments and surprising results. How much do you know about this quadrennial event and the system that underpins it?