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The day the bombing of London started – level 3
07-09-1940In August 1940, Germany controlled much of Western Europe. One country...
The day a signal came from space – level 3
15-08-1977On August 15, 1977, American astronomer Jerry Ehman carried out an...
The day the construction of the Tower of Pisa started – level 1
09-08-1173The Tower of Pisa stands in Italy. People start to build...
The day the construction of the Tower of Pisa started – level 2
09-08-1173The construction of the Tower of Pisa began on August 9,...
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...
The day the last emperor of Russia died – level 2
17-07-1918Nicholas II was a Russian tsar. He came to power in...
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 of the highest temperature recorded on Earth – level 1
10-07-1913The highest temperature on Earth is 56.7 degrees Celsius. People measure...
The day of the highest temperature recorded on Earth – level 2
10-07-1913The highest temperature ever recorded on Earth was 56.7 degrees Celsius....
