This article is about the first-generation historical tram system in Istanbul. For Istanbul's modern tramways, see 
Istanbul Tram. For Istanbul's modern "heritage" tramlines, see 
Istanbul nostalgic tramways.
| Trams in Istanbul | 
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| Locale | Istanbul, Turkey | 
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| Status | Closed (first generation) Operational (modern system)
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| Horsecar era: 1860 (1860)–1912 (1912) | 
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| Status | Converted to electricity |  
| Propulsion system(s) | Horses |  | 
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The former capital of the Ottoman Empire, Istanbul, was once served on both its Asian and European sides by a large network of trams in Istanbul. Its first-generation tram network first operated as a horse tram system starting in 1871, and was eventually converted to electric trams in the early twentieth century. The original tram network finally closed in 1966.
Trams returned in 1990, and a second generation of modern tram service began service in 1992. In this modern era, Istanbul is served by three separate tramway systems. The Asian side has a heritage tramline, whereas the European side has both a heritage tramline and a modern tram system.