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The day Machu Picchu was discovered – level 3
24-07-1911Around 1450, the Incas built a city high in the Peruvian...
The day the construction of Hoover Dam began – level 1
07-07-1930On July 7, 1930, the construction of the Hoover Dam starts....
The day the construction of Hoover Dam began – level 2
07-07-1930On July 7, 1930, the construction of the Hoover Dam began....
The day the construction of Hoover Dam began – level 3
07-07-1930On July 7, 1930, the construction of the Hoover Dam began....
The day the human DNA was mapped – level 1
14-04-2003In 1990, scientists begin a special project. They want to map...
The day the human DNA was mapped – level 2
14-04-2003In 1990, scientists began a project with the goal of mapping...
The day of the Smolensk air disaster – level 3
10-04-2010On April 10, 2010, a Polish government plane headed to Russia...
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...
The day the first person reached the North Pole – level 2
06-04-1909For many years, people believed that the first man who reached...
