What does a person need to do to get back a lost piece of history? And will history change because of his actions? From the author: Special thanks for the selfless idea, that is, for nothing. Sergei Banza. I was tormented here, I didn’t know how to save civilization from polluting our planet, but here, hello, the solution to the problem lies. solutions and complex. In general, thank you Sergey for the right to use the idea!