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The day of the Kursk submarine disaster – level 2
12-08-2000On August 12, 2000, the Russian submarine Kursk was in the...
The day of the Kursk submarine disaster – level 3
12-08-2000On August 12, 2000, the Russian submarine Kursk was in the...
The day World War I started – level 2
28-07-1914In 1914, countries in Europe were in two groups. Germany, Austria-Hungary,...
The day World War I started – level 3
28-07-1914In 1914, countries in Europe were divided into two coalitions. On...
The day Hitler survived an assassination attempt – level 1
20-07-1944It is summer 1944. The German army is not very strong....
The day Hitler survived an assassination attempt – level 2
20-07-1944In the summer of 1944, Hitler was at war with most...
The day Hitler survived an assassination attempt – level 3
20-07-1944In the summer of 1944, Hitler was at war with most...
The day GPS was fully operational – level 1
17-07-1995GPS is a system which gives information about your location on...
The day GPS was fully operational – level 2
17-07-1995The Global Positioning System (GPS) is a satellite system which gives...
The day GPS was fully operational – level 3
17-07-1995The Global Positioning System (GPS) is a satellite system that provides...
