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The day the last emperor of Russia died – level 3
17-07-1918Nicholas II was a Russian tsar whose dynasty had been on...
The day the Roswell UFO incident was published – level 3
08-07-1947One morning in July 1947, William Brazel who worked on the...
The day the Six-Day War started – level 3
05-06-1967In May 1967, Egypt closed the Straits of Tiran for Israeli...
The day the longest railway tunnel was opened – level 2
01-06-2001The longest railway tunnel in the world is in Switzerland. Its...
The day the longest railway tunnel was opened – level 3
01-06-2001The Gotthard Base Tunnel is in Switzerland and it runs under...
The day of the U-2 incident – level 2
01-05-1960On May 1, 1960, an American spy plane was flying over...
The day of the U-2 incident – level 3
01-05-1960On May 1, 1960, an American U-2 spy plane was flying...
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 Tibetan uprising – level 3
10-03-1959In 1951, Tibet became part of China. However, it had its...
The day the first nonstop flight around the world started – level 2
26-02-1949On February 26, 1949, a special plane took off from a...
