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Big History Quiz

Do you consider yourself a master historian? Then this is the quiz for you! From the Industrial Revolution to the founding of NATO and the UN, you’ll face challenging and fun questions about countries from all over the world. It’s time to show what you’ve got!

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Fact Lab

Kissing is the most beautiful way to show affection, but did you know that it’s also healthy? When couples kiss, the level of the stress hormone cortisol in your blood stream is lowered – this kind of stress relief is certainly more fun than a nap or meditation!

When a crocodile loses a tooth, it is quickly replaced. These reptiles can go through 8,000 teeth over a lifetime. Crocodiles are often confused with alligators, but there are some easy-to-spot differences. An alligator's jaw is U-shaped, while a crocodile has a V-shaped jaw, according to the San Diego Zoo. Crocodiles also have teeth that stick up over their upper lip when their mouths are closed.

If you have caught a cold, you can try and mend it with medicine – or simply enjoy a bowl of chicken soup. Studies have found that the savoury concoction has genuine health benefits. It’s hardly breaking news, though – even the ancient Greeks used chicken soup as a remedy for cold.

Fact Lab