Everyone has secrets that he wants to disclose to nobody. However, there are mysteries that have the power of historical significance, and excite the minds of the masses for centuries. Factroom.ru spoke about people who have never revealed to the world the knowledge that can change the world.

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Arne Börling and the secret code T52. At first all messages that were printed with the help of T52 were considered impossible to decipher. Everything changed when the mathematics professor Arne Burling decided to solve the mysterious code. After a short while he learned not only how to decode messages printed on T52, but also to unravel the code. Thus, Sweden "got access" to the top-secret reports of the Nazis, and therefore the Swedes were among the first to learn about Hitler's plans.

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