Before we can tell you more about the discovery, we need to go back in the time from where it all started. In the 1930s, Europe was living under constant fear of war. Memories of WWI were still afresh in people’s mind and nobody wanted another war. But the Nazis were growing, expanding the nation throughout the continent which increased the tension. And in August 1939, the British Parliament passed the Emergency Powers (Defence) Act, which allowed the government to impose all sort of rules and regulations they felt were feasible for the betterment of the country and most importantly winning the war at any cost.