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The day Nautilus traveled under the North Pole – level 3

03-08-1958

On August 3, 1958, the United States Navy submarine Nautilus became...



The day of the first atomic bomb explosion – level 3

16-07-1945

On July 16, 1945, the United States successfully conducted the first...



The day when the chess Match of the Century began – level 2

11-07-1972

Bobby Fischer was an American chess player who won the world...



The day of the Tunguska Event – level 2

30-06-1908

On June 30, 1908, one of the biggest and most mysterious...



The day the Watergate scandal started – level 2

17-06-1972

It is Saturday, June 17, 1972. Sometime after midnight, the security...



The day the Watergate scandal started – level 3

17-06-1972

Sometime after midnight on Saturday, June 17, 1972, the security guard...



The day of the first woman in space – level 2

16-06-1963

In 1963, the Soviets wanted to show the world who was...



The day of the first woman in space – level 3

16-06-1963

In 1963, the Soviets decided to show the world once again...



The day Mathias Rust landed in Moscow – level 1

28-05-1987

It is 1987. Mathias Rust lives in West Germany. He is...



The day of a successful vaccination – level 3

14-05-1796

Smallpox was a deadly and highly infectious disease that had killed...