Planet Earth belongs to the Milky Way galaxy which has more than 200 billion stars.
Our kidneys have many tubes; if we would merge them, they would form a long thin tube 65 kilometers long.
The first SMS message was sent on 3 December 1992 when the programmer Neil Papworth sent a Christmas greetings to his friend Richard Jarvis through the "Vodafone" network.
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.
Japan can boast about the oldest anthem on the Earth. Its text is from the 9th century.
The candle flame is blue at the bottom because of the oxygen intake and yellow at the top because it burns it there.
