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The day the longest railway tunnel was opened – level 1
01-06-2001The longest railway tunnel in the world is in Switzerland. The...
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 the Empire State Building opened – level 2
01-05-1931The construction of the Empire State Building began in 1930. It...
The day the Empire State Building opened – level 3
01-05-1931The construction of the Empire State Building began in 1930. It...
The day when the Bismarck battleship sank – level 1
27-05-1941Bismarck is one of the biggest German battleships. Germany builds the...
The day when the Bismarck battleship sank – level 3
27-05-1941Bismarck was one of the two largest battleships ever built by...
The day the Brooklyn Bridge opened – level 3
24-05-1883On May 24, 1883, the Brooklyn Bridge, connecting Manhattan and Brooklyn...
The day jeans were patented – level 2
20-05-1873Levi Strauss was a German immigrant who came to the United...
The day jeans were patented – level 3
20-05-1873Levi Strauss was a German immigrant who came to the United...
