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The day Nelson Mandela became president – level 3
10-05-1994Nelson Mandela was born in times when the whites lived in...
The day of the U-2 incident – level 2
01-05-1960On May 1, 1960, an American spy plane was flying over...
The day of the U-2 incident – level 3
01-05-1960On May 1, 1960, an American U-2 spy plane was flying...
