It was opened in 1882 during the construction of the Metropolitan Railway to the north. Two years later, the MR and Metropolitan District Railway (now the District line) were connected to form the Inner Circle (now the Circle line) and a new station was built.includeonly> This new station was opened in 1884 with the name Mark Lane (later renamed Tower Hill), just to the west of the Tower of London station, which closed the same day.includeonly>