Berlin S-Bahn Electrification Begins

On June 26, 1926, the Berlin S-Bahn started electric operations on key sections of the Ringbahn using third-rail powered ET 165 trains. This marked a major step in Germany's urban rail modernization following World War I, replacing steam locomotives with cleaner, faster electric multiple units. The project improved capacity and reliability for Berlin's growing population and set standards for suburban rail systems worldwide. The S-Bahn network later became integral to the city's identity and survived division during the Cold War.