Amsterdam has 14 tram lines traversing the city, all numbered for easy identification. But though there are tram numbered 1 through 5, the number “8” is unlikely to ever be used against due to its involvement with the Holocaust. The line was first established in 1905 and ran between Central Station and Weesperzijde, traversing many Jewish neighborhoods in the process. It actually became known among locals as the “Jodentram.” In 1942, the Nazi regime banned Jews from traveling via public transport, which cut the line’s ridership in half. On top…