In what year did Nelson Mandela become President of South Africa?

In what year did the first Apple iPhone go on sale?

What is the exact speed of light in a vacuum, in metres per second, as defined in the SI?

In what year was the Soviet Union dissolved?

What is the atomic number of gold?

How many planets are in the Solar System under the IAU's 2006 definition?

How many hours are in one week?

In what year was the Bastille stormed, beginning the French Revolution?

In what year did World War I begin?

In what year did Christopher Columbus first reach the Americas?

In what year was the United States Declaration of Independence adopted?

In what year did World War II end?

In what year did the RMS Titanic sink?

In what year did Apollo 11 first land humans on the Moon?

In what year did the Berlin Wall fall?

How many Olympic gold medals did Michael Phelps win in his career?

How many Olympic gold medals is Usain Bolt officially credited with, after the 2008 4x100 m relay medal was withdrawn?

How many FIFA men's World Cup titles had Brazil won in total through the 2022 tournament?

How many FIFA men's World Cup titles had Brazil won in total through the 2022 tournament?

In what year were the first modern Olympic Games held?

In what year did Roger Bannister run the first mile in under four minutes?

How many Stanley Cup championships have the Montreal Canadiens won?

How many career regular-season home runs did Hank Aaron hit in Major League Baseball?

In what calendar year was Super Bowl I played?

In what year did Jackie Robinson make his Major League Baseball debut?