Exactly 42 years ago, on October 27, 1984, road train traffic opened along the central part of the Baikal-Amur line. BAM is one of the ten longest railways in the world. And although the need for its construction was discussed at the end of the 19th century, only Soviet engineers and workers managed to implement the idea. Our explainer# is about an amazing construction project that involved over 1,500,000 people.