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The day of a successful vaccination – level 3
14-05-1796Smallpox was a deadly and highly infectious disease that had killed...
The day the first tourist went to space – level 1
28-04-2001When Dennis Tito is a boy, he likes to watch the...
The day the first tourist went to space – level 2
28-04-2001People were always fascinated by the night sky full of stars....
The day Russia sold Alaska to the United States – level 1
30-03-1867Russians come to Alaska in 1741. They are interested in fur...
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 US stopped fighting in Vietnam – level 1
27-01-1973Vietnam has two parts of the country in 1964. These two...
The day of the first episode of The Simpsons – level 1
17-12-1989The Simpsons is a very popular animated sitcom. It is also...
The day of the first episode of The Simpsons – level 2
17-12-1989The Simpsons is a very popular animated sitcom. It is also...
The day of the first episode of The Simpsons – level 3
17-12-1989The Simpsons is a very popular animated sitcom and the name...
The day of the bankruptcy of Lehman Brothers – level 2
15-09-2008Lehman Brothers was one of the biggest banks in the United...
