First Electric Multiple Unit Service in Germany

On July 20, 1903, the Prussian State Railways launched electric multiple unit operations on Berlin's suburban network, using third-rail power at 750V DC. This innovation, developed with Siemens, replaced steam locomotives in dense urban areas, reducing smoke and enabling faster acceleration with motor cars integrated into passenger coaches. It alleviated congestion on the growing metropolis and set precedents for S-Bahn systems worldwide. The event reflected Germany's leadership in electrification amid rapid industrialization and influenced global adoption of EMUs for commuter services.