Wolfgang Amadeus Mozart is considered one of the most prolific composers of classical music. By the time he reached thirty-five, he wrote about a thousand compositions.
A four-year-old child will, on average, ask about 437 questions a day.
In 1666, the fire that destroyed most of the city of London, at the same time has ended the plague. Mostly because the fire killed infected rats who were the carriers of the disease.
The longest border in the world is the one that separates Canada and the United States; a length of 6,416 kilometers.
In 100 grams of butter, there are three times more calories than in the same amount of meat.
Turtles can breathe through their backsides.
