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May 10th Throughout History
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History
MediumOn This Day

May 10th Throughout History

On 10 May 1871, the Treaty of Frankfurt cedes Alsace-Lorraine. In 1940, the Wehrmacht crosses the Ardennes. In 1981, Mitterrand wins; in 1994, Mandela becomes president after 27 years in prison.

2 min
July 25 Through History
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History
MediumOn This Day

July 25 Through History

Louis Blériot crossed the Channel in 1909, Mozart completed his 40th symphony in 1788, the Concorde crashed in 2000, Tunisia became a republic in 1957. Can you place them back in order?

2 min
June 25th Throughout History
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History
MediumOn This Day

June 25th Throughout History

In 1857, Baudelaire publishes The Flowers of Evil. On 25 June 1852, Antoni Gaudí is born in Reus. In 1975, Mozambique breaks free from Portugal. Prince drops Purple Rain in 1984. A date with no shortage of style.

2 min
May 29th Through History
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History
MediumOn This Day

May 29th Through History

On 29 May 1453, Constantinople falls to Mehmed II. In 1919, Eddington confirms Einstein's relativity from Príncipe. In 1953, Hillary and Tenzing reach Everest. In 1985, the Heysel disaster.

2 min
Extreme Nature: The Atacama Desert
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Nature
Medium

Extreme Nature: The Atacama Desert

ALMA perched at 5,000 m of altitude, the salt flat that holds a major share of the world's lithium, stations with no rain for decades: 10 questions on the driest desert outside the polar zones. Which mineral powers lithium-ion batteries? Which giant open-pit mine hides there? Which tropic line crosses it?

2 min
May 2nd Through History
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History
MediumOn This Day

May 2nd Through History

On 2 May 1808, Madrid rises against Napoleon. On 2 May 1519, Leonardo da Vinci dies at Amboise. On 2 May 1982, the General Belgrano sinks in the Falklands. Test your memory of dates tied to this day.

2 min
International Trade: Routes and Exchanges
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Business & Economics
Medium

International Trade: Routes and Exchanges

A 7,000 km caravan route once linked China to the Mediterranean, a 1947 treaty signed by 23 countries laid the foundations of modern exchanges, and Europe's largest port handles millions of containers. From Antiquity to globalization, uncover how world trade really works.

2 min
Science Fiction: Genre Classics
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Literature
Easy

Science Fiction: Genre Classics

Jules Verne and his 60 Extraordinary Voyages, the Three Laws of Robotics laid out by Isaac Asimov in 1942, the famous saga of galactic empires, Frank Herbert and the desert planet Arrakis, Ray Bradbury and his Fahrenheit 451, the radio panic caused by Orson Welles in 1938: 10 questions on the classics of sci-fi, not your reflexes.

1 min
Essential Vitamins & Minerals
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Health & Wellness
Easy

Essential Vitamins & Minerals

Which fruit hides 50 mg of vitamin C per 100 g? Which mineral makes up 99% of the skeleton? Which vitamin is named after a German word for coagulation? 10 questions to untangle essential vitamins and minerals.

1 min
June 9th Through History
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History
MediumOn This Day

June 9th Through History

June 9, 53 BC, Crassus dies at Carrhae against the Parthians. June 9, 1660, Louis XIV marries Maria Theresa at Saint-Jean-de-Luz. June 9, 1944, the Das Reich division hangs 99 residents of Tulle. Test your memory of dates.

2 min
Major Companies: Business Giants
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Business & Economics
Medium

Major Companies: Business Giants

The Amazon service that generates the most profit, the best-selling Apple product in history, Google's original name before 1998, the 1-billion buyout of Instagram in 2012, and the flat-pack furniture empire launched by Ingvar Kamprad in 1943. 15 questions on business culture.

2 min
Horcruxes & The Deathly Hallows
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Literature
HardHarry Potter

Horcruxes & The Deathly Hallows

The darkest magic of the saga: 7 fragments of soul, 3 legendary objects. How many Horcruxes did Voldemort truly create intentionally? What vile act must be committed to make one? Which cursed flame destroys Ravenclaw's Diadem, where is Hufflepuff's Cup hidden, and what inscription does Dumbledore leave on the Golden Snitch? 10 hard questions for expert fans.

2 min