What is the oldest underground line in London?
system
What is the oldest underground line in London?
user
The Metropolitan Railway opened in 1863 and was the first London underground line and indeed the first urban underground railway in the world. The Metropolitan Railway ran between Paddington and Farringdon.
assistant
<|system|>
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<|user|>
What is the oldest underground line in London?</s>
<|assistant|>
The Metropolitan Railway opened in 1863 and was the first London underground line and indeed the first urban underground railway in the world. The Metropolitan Railway ran between Paddington and Farringdon.</s>
