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The day a computer beat the best chess player – level 3

11-05-1997

In 1996, IBM built a supercomputer. They approached the world champion,...



The day of the U-2 incident – level 2

01-05-1960

On May 1, 1960, an American spy plane was flying over...



The day of the U-2 incident – level 3

01-05-1960

On May 1, 1960, an American U-2 spy plane was flying...



The day gambling was legalized in Las Vegas – level 3

19-03-1931

In the early 20th century, Las Vegas was a small town...



The day of the Battle of Los Angeles – level 3

24-02-1942

In early 1942, the United States was at war with Japan...



The day the US stock market crashed – level 3

24-10-1929

After World War I, European countries had big debts. Hyperinflation was...



The day of the terrorist attacks on the US – level 3

11-09-2001

On September 11, 2001, 19 hijackers took control of four commercial...



The day the construction of the Tower of Pisa started – level 3

09-08-1173

The construction of the Tower of Pisa began on August 9,...