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The day the trial of the Rosenbergs started – level 3

06-03-1951

The atomic bomb that the Americans developed didn’t only cause an...



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 1

01-03-1872

Yellowstone is a beautiful place. In 1805, the first Europeans come...



The day the first national park was established – level 2

01-03-1872

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



The day the first national park was established – level 3

01-03-1872

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



The day the first nonstop flight around the world started – level 1

26-02-1949

It is February 26, 1949. A special plane flies from Texas,...



The day the first nonstop flight around the world started – level 2

26-02-1949

On February 26, 1949, a special plane took off from a...



The day the first nonstop flight around the world started – level 3

26-02-1949

On February 26, 1949, a special plane with a 14-member crew...