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The day Deepwater Horizon sank – level 2

22-04-2010

Deepwater Horizon was a modern oil rig. It took oil from...



The day the first person went into space – level 1

12-04-1961

Yuri Gagarin is 27 years old. He is preparing for his...



The day the first person went into space – level 2

12-04-1961

Yuri Gagarin was 27 years old when he was preparing for...



The day the first person went into space – level 3

12-04-1961

Yuri Gagarin was 27 years old when he was preparing for...



The day of the Smolensk air disaster – level 1

10-04-2010

On April 10, 2010, a Polish plane is flying to Russia....



The day of the Tenerife airport disaster – level 1

27-03-1977

It is March 27, 1977. A big plane is on a...



The day the order to kill the Polish elite was signed – level 1

05-03-1940

It is September 1, 1939. Germany attacks Poland. Two weeks later,...



The day the order to kill the Polish elite was signed – level 2

05-03-1940

In August 1939, the Soviet Union and Germany signed a non-aggression...



The day the order to kill the Polish elite was signed – level 3

05-03-1940

In August 1939, the Soviet Union and Germany signed a non-aggression...



The day the first national park was established – level 2

01-03-1872

Yellowstone National Park is a beautiful place. In 1805, the first...