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The day NATO was founded – level 3

04-04-1949

At the end of World War II, Berlin was divided into...



The day the first satellite was launched – level 3

04-10-1957

It was one of the most famous objects ever created by...



The day the most famous formula was published – level 3

27-09-1905

In 1905, Albert Einstein was a young man working for the...