Yesterday we ran a competition to win 100 keys to enter for the S.T.A.L.K.E.R.: Shadow of Chernobyl multiplayer beta! which has stirred an incredible amount of interest on our forums. THQ were so amazed at the demand on our site for these keys and the feedback they received that they have just given us 100 more keys to give away on Gaming Heaven ! This time, things are a little different. Each day you have a chance to win a key out of a batch of 20 by simply answering a question correctly. At the end of each day, ill be randomly picking 20 people who answered correctly and sending them a key. All answers to these questions can be found somewhere on S.T.A.L.K.E.R.: Shadow of Chernobyl website. Can be either publisher or developer site, so you need to look around a bit ! The first question for today is: "The story of S.T.A.L.K.E.R. is a hypothesis based on real events that took place in the XXXX" If you know the answer for XXXX then post your answer in this thread. For example "The story of S.T.A.L.K.E.R. is a hypothesis based on real events that took place in the 1850's"