Gross-Lichterfelde Tramway
The Gross Lichterfelde Tramway was the world's first commercially successful electric tram and first public electric tramway used for permanent service. It was built by the Siemens & Halske company in Lichterfelde, a suburb of Berlin, and went in service on 16 May 1881.
Source: Wikipedia — Gross-Lichterfelde Tramway (CC BY-SA 4.0)