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The day a signal came from space – level 1
15-08-1977It is August 15, 1977. An American astronomer looks at the...
The day a signal came from space – level 2
15-08-1977On August 15, 1977, American astronomer Jerry Ehman looked at the...
The day a signal came from space – level 3
15-08-1977On August 15, 1977, American astronomer Jerry Ehman carried out an...
The day the order to kill the Polish elite was signed – level 1
05-03-1940It is September 1, 1939. Germany attacks Poland. Two weeks later,...
The day the order to kill the Polish elite was signed – level 2
05-03-1940In August 1939, the Soviet Union and Germany signed a non-aggression...
The day the order to kill the Polish elite was signed – level 3
05-03-1940In August 1939, the Soviet Union and Germany signed a non-aggression...
The day the US stopped fighting in Vietnam – level 1
27-01-1973Vietnam has two parts of the country in 1964. These two...
The day the US stopped fighting in Vietnam – level 2
27-01-1973Vietnam was divided into North Vietnam and South Vietnam since the...
The day the US stopped fighting in Vietnam – level 3
27-01-1973Vietnam was divided into North Vietnam and South Vietnam since the...
The day the first gorilla was born in a zoo – level 2
22-12-1956The first gorilla was born in a zoo in the United...
