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The day the first person went into space – level 2
12-04-1961Yuri Gagarin was 27 years old when he was preparing for...
The day the first person went into space – level 3
12-04-1961Yuri Gagarin was 27 years old when he was preparing for...
The day of the first published photograph of a black hole – level 1
10-04-2019Messier 87 is a galaxy. It is 55 million light-years away...
The day of the first published photograph of a black hole – level 3
10-04-2019The first black hole that was photographed is located at the...
The day of the Smolensk air disaster – level 3
10-04-2010On April 10, 2010, a Polish government plane headed to Russia...
The day the American Civil War ended – level 1
09-04-1865In 1861, the situation in the United States isn’t easy. There...
The day the American Civil War ended – level 2
09-04-1865In the middle of the 19th century, the situation in the...
The day the American Civil War ended – level 3
09-04-1865In the middle of the 19th century, the situation on the...
The day four pirates attacked a big ship – level 1
08-04-2009In 2009, four Somali pirates attack a US ship. It happens...
The day four pirates attacked a big ship – level 2
08-04-2009In 2009, a group of Somali pirates attacked a US cargo...
