On November 6, 1931, Moscow received the first locomotive from the "Felix Dzerzhinsky" series. It was the strongest and most powerful serial freight locomotive in the history of the Soviet Union. Its creation was the result of the titanic efforts of Soviet engineers and workers who worked on this project for many years. The Felix Dzerzhinsky locomotive became a symbol of technical progress and the power of the country. It not only improved the transport system of the Soviet Union but also became the pride and achievement of the entire Soviet people. It was an important step in the development of our country, which left a bright mark in history.