<a href="https://en.wikipedia.org/wiki/City_and_South_London_Railway" id="mwag" rel="mw:WikiLink" title="City and South London Railway">City and South London Railway</a>: London's first deep-level <a href="https://en.wikipedia.org/wiki/London_Underground" id="mwaw" rel="mw:WikiLink" title="London Underground">tube</a> railway opens between <a href="https://en.wikipedia.org/wiki/King_William_Street,_London" id="mwbA" rel="mw:WikiLink" title="King William Street, London">King William Street</a> and <a href="https://en.wikipedia.org/wiki/Stockwell_tube_station" id="mwbQ" rel="mw:WikiLink" title="Stockwell tube station">Stockwell</a>.