The Great Train Robbery occurred on August 8, 1963, in England, when a group of robbers intercepted a Royal Mail train. They used a fake signal to stop the train and then overpowered the crew, making off with £2.6 million, equivalent to about £53 million today. The robbery was meticulously planned, involving detailed knowledge of the train's schedule. The crime was executed by a gang of 15 men, who later faced various legal consequences. Despite the initial success, many of the robbers were eventually caught, and the heist became one of the most famous crimes in British history, inspiring numerous books and films about crime and robbery.