After most of the countries had fallen in 1940, Adolf Hitler prepared the German troops for an invasion of Britain. The battle was called Battle and fought between the Royal Air Force of Britain and the Luftwaffe, the air force of Germany. Back then, Britain was the only country in Western Europe fighting against Nazi Germany. However, the Royal Air Force of Britain refused to surrender and in the end, the plan of invasion of Britain proved futile.
Marie Curie was the scientist whose private papers had to be decontaminated for two years in the 1990's before being put on file at the National Library in Paris. Marie Skłodowska Curie was a Polish and naturalized-French scientist and chemist who escorted pioneering analysis on radioactivity. She said that being a historian is not without its jeopardies.
