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The day the human DNA was mapped – level 2

14-04-2003

In 1990, scientists began a project with the goal of mapping...



The day of the first published photograph of a black hole – level 3

10-04-2019

The first black hole that was photographed is located at the...



The day of the Smolensk air disaster – level 3

10-04-2010

On April 10, 2010, a Polish government plane headed to Russia...



The day four pirates attacked a big ship – level 3

08-04-2009

In 2009, a group of Somali pirates launched an attack on...



The day the first person reached the North Pole – level 1

06-04-1909

Some people believe that the first man at the North Pole...



The day the first person reached the North Pole – level 2

06-04-1909

For many years, people believed that the first man who reached...



The day the first person reached the North Pole – level 3

06-04-1909

For many years, people believed that the first man to conquer...



The day Martin Luther King was killed – level 2

04-04-1968

In 1865, slavery ended in the United States, but 90 years...



The day Martin Luther King was killed – level 3

04-04-1968

In 1955, slavery hadn’t existed in the United States for 90...



The day Martin Luther King was killed – level 1

04-04-1968

In 1955, the situation isn’t good for black people in the...