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The day the human DNA was mapped – level 3
14-04-2003In 1990, scientists started a project with the goal of mapping...
The day of the Smolensk air disaster – level 1
10-04-2010On April 10, 2010, a Polish plane is flying to Russia....
The day of the Smolensk air disaster – level 2
10-04-2010On April 10, 2010, a Polish plane was flying to Russia....
The day of the Smolensk air disaster – level 3
10-04-2010On April 10, 2010, a Polish government plane headed to Russia...
The day Martin Luther King was killed – level 2
04-04-1968In 1865, slavery ended in the United States, but 90 years...
The day Martin Luther King was killed – level 3
04-04-1968In 1955, slavery hadn’t existed in the United States for 90...
The day Martin Luther King was killed – level 1
04-04-1968In 1955, the situation isn’t good for black people in the...
The day NATO was founded – level 1
04-04-1949After World War II, Berlin has two parts. There is the...
