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Why did Rome fall?Depends on which Rome you're asking about.
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What was the largest empire in the world?You can argue for the British, Persians, Romans, Mongols or pretty much any empire you want.
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Does coffee really stunt kids' growth?It's probably fine to give your child weak coffee, as long as you skip the sugar.
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Did the Great Wall of China work?The Great Wall of China was built to defend the empire from enemy armies, but now it acts as a unifying symbol and a useful propaganda tool for the ruling Communist Party.
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When did Constantinople become Istanbul?Istanbul has had many names, including Byzantium, New Rome and Constantinople. It didn't officially become Istanbul until 1930.
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Did all roads lead to Rome?So long as you're travelling to Rome.
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Why do faces become less symmetrical with age?The aging process doesn't happen equally on both sides, leaving the human face increasingly less symmetrical with age.
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Why do you sometimes gain weight after exercising?Why do people sometimes gain weight after they start to exercise regularly?
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Where did watermelons come from?New evidence shows that watermelons were first domesticated in Sudan, leading experts to think the region rivals Iraq as a cradle of agriculture.
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When did the Brits and Yanks become allies again after the Revolutionary War?While often strained, the U.K.-U.S. relationship got a boost when Roosevelt and Churchill became drinking buddies.
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What was the deadliest day in US history?It's impossible to know for sure the deadliest day in U.S. history because you can end up comparing apples with oranges.
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Is Latin a dead language?Latin is alive and well, but Julius Caesar might struggle to understand its modern form.
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Why were the ancient Egyptians obsessed with cats?If cats were loved, why were so many sacrificed?
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Did Marie Antoinette really say 'Let them eat cake'?No, the misquote is an example of French revolutionary propaganda.
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Is an electric car better for the planet?It's almost impossible to argue that gasoline-powered cars are better for the environment.
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When did lap dogs become popular?Trends, set by royals and movies, help to influence a dog breed's popularity.
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Why do the queen's guards wear such tall hats?To scare off the queen's enemies.
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How many early human species existed on Earth?As we continue to unearth ancient remains, the number of early human species grows.
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How many French revolutions were there?It's open to debate, but a lot of the 19th century was spent in open revolt.
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Why was Stonehenge built?No one really knows, but there are a few educated guesses.
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How wild was the Wild West?While officially lawless, settlers usually weren't all that wild.
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How does a secure phone line work?Encryption tech can be either hardware or software.
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What color is the sun?You probably learned this at school.
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Why is November the 11th month, not the 9th month?It was either because New Year's Day used to be March 1 or because the Romans used to have a 10-month calendar.
