Moorgate was a postern in the London Wall originally built by the Romans. It was turned into a gate in the 15th century. Though the gate was demolished in 1762, the name survives as a major street in the City of London. The street connects the City to the London Boroughs of Islington and Hackney, and was constructed around 1846 as one of the new approaches to London Bridge.
The name "Moorgate" derives from the surrounding area of Moorfields, which was one of the last pieces of open land in the City. Today this region is a financial centre, and is home to several investment banks. The street also showcases historic and contemporary office buildings.
Moorgate station on the London Underground is remembered for the Moorgate tube crash of 1975. In the incident, a train terminating at the station failed to stop and crashed into a brick wall, and 43 people were killed. This resulted in systems being installed on the Underground which automatically stop trains at dead-ends, which have become known as Moorgate control.
The earliest descriptions of Moorgate date from the early 15th century, where it was described as only a postern in the London city wall. Located between Bishopsgate and Cripplegate and leading to a moor known as Moorfields, it was not one of the larger or more important of the city gates.
In 1415 an ordinance enacted that the old postern be demolished. It was replaced with a newer and larger structure located farther to the west, which included a wooden gate to be shut at night. This gate was enlarged again in 1472 and 1511, and then damaged in the Great Fire of London in 1666. Although the City gates had ceased to have any modern function apart from decoration, it was replaced along with Ludgate, Newgate, and Temple Bar with a stone gate in 1672.