It's Newspeak, from 1984, by George Orwell. "Minitrue" stands for the Ministry of Truth, which in the book was used to control people's thoughts and remove from history anything that didn't agree with the Party's beliefs. Roughly translated, it says:
"The Ministry of Truth has marked evolution and dinosaurs to be very, very bad and illegal thoughts. The Ministry of Truth will rewrite this thread to make it fully good thoughts."