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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 the American Civil War ended – level 3
09-04-1865In the middle of the 19th century, the situation on the...
The day the trial of the Rosenbergs started – level 1
06-03-1951In 1945, the United States use an atomic bomb. The atomic...
The day the trial of the Rosenbergs started – level 2
06-03-1951The atomic bomb which the Americans developed helped to end the...
The day the trial of the Rosenbergs started – level 3
06-03-1951The atomic bomb that the Americans developed didn’t only cause an...
The day the Yalta Conference started – level 2
04-02-1945In February 1945, it was clear that World War II was...
The day the Yalta Conference started – level 3
04-02-1945In February 1945, it was clear that World War II was...
The day Oswiecim concentration camp was liberated – level 3
27-01-1945Discrimination against Jews began after Hitler came to power in 1933....
The day Wikipedia started – level 3
15-01-2001Wikipedia is a free, online encyclopedia that has become one of...
The day the light bulb was invented – level 3
21-10-1879The first experiments with electric light were carried out in the...
