Origins , –50 BC, found in the
River Thames The Roman legions established a settlement known as "Londinium" on the current site of the City of London around AD 43. Its bridge over the River Thames turned the city into a
road nexus and major
port, serving as a major commercial centre in
Roman Britain until its abandonment during
the 5th century. Archaeologist Leslie Wallace notes that, because extensive archaeological excavation has not revealed any signs of a significant
pre-Roman presence, "arguments for a purely Roman foundation of London are now common and uncontroversial." At its height, the Roman city had a population of approximately 45,000–60,000 inhabitants. Londinium was an ethnically diverse city, with inhabitants from across the Roman Empire, including natives of Britannia,
continental Europe, the Middle East, and North Africa. The Romans built the London Wall some time between AD 190 and 225. The boundaries of the Roman city were similar to those of the City of London today, though the City extends further west than Londinium's
Ludgate, and the Thames was undredged and thus wider than it is today, with Londinium's shoreline slightly north of the City's present shoreline. The Romans built a bridge across the river, as early as AD 50, near to today's London Bridge.
Decline By the time the London Wall was constructed, the City's fortunes were in decline, and it faced problems of plague and fire. The Roman Empire entered a long period of
instability and decline, including the
Carausian Revolt in Britain. In the 3rd and 4th centuries, the City was under attack from
Picts, Scots, and
Saxon raiders. The decline continued, both for Londinium and the Empire, and in AD 410 the Romans withdrew entirely from Britain. Many of the Roman public buildings in Londinium by this time had fallen into decay and disuse, and gradually after the formal withdrawal the City became almost (if not, at times, entirely) uninhabited. The centre of trade and population moved away from the walled Londinium to
Lundenwic ("London market"), a settlement to the west, roughly in the modern-day
Strand/
Aldwych/
Covent Garden area.
Anglo-Saxon restoration During the Anglo-Saxon
Heptarchy, the London area came in turn under the Kingdoms of
Essex,
Mercia, and later
Wessex, though from the mid 8th century it was frequently under threat from raids by different groups including the
Vikings.
Bede records that in AD 604
St Augustine consecrated
Mellitus as the first bishop to the
Anglo-Saxon kingdom of the
East Saxons and their king,
Sæberht. Sæberht's uncle and overlord,
Æthelberht, king of
Kent, built a church dedicated to St Paul in London, as the seat of the new bishop. It is assumed, although unproven, that this first Anglo-Saxon cathedral stood on the same site as the later medieval and the present cathedrals.
Alfred the Great,
King of Wessex occupied and began the resettlement of the old Roman walled area, in 886, and appointed his son-in-law
Earl Æthelred of Mercia over it as part of their reconquest of the Viking occupied parts of England. The refortified Anglo-Saxon settlement was known as ("London Fort", a
borough). The historian Asser said that "Alfred, king of the Anglo-Saxons, restored the city of London splendidly ... and made it habitable once more." Alfred's "restoration" entailed reoccupying and refurbishing the nearly deserted Roman walled city, building quays along the Thames, and laying a new city street plan. Alfred's taking of London and the rebuilding of the old Roman city was a turning point in history, not only as the permanent establishment of the City of London, but also as part of a unifying moment in early England, with Wessex becoming the dominant English kingdom and the repelling (to some degree) of the Viking occupation and raids. While London, and indeed England, were afterwards subjected to further periods of Viking and Danish raids and occupation, the establishment of the City of London and the
Kingdom of England prevailed. In the 10th century,
Athelstan permitted eight
mints to be established, compared with six in his capital,
Winchester, indicating the wealth of the city. London Bridge, which had fallen into ruin following the Roman evacuation and abandonment of Londinium, was rebuilt by the Saxons, but was periodically destroyed by Viking raids and storms. As the focus of trade and population was moved back to within the old Roman walls, the older Saxon settlement of Lundenwic was largely abandoned and gained the name of
Ealdwic (the "old settlement"). The name survives today as Aldwych (the "old market-place"), a name of a street and an area of the City of Westminster between
Westminster and the City of London.
Medieval era , dating from the 1560s Following the
Battle of Hastings,
William the Conqueror marched on London, reaching as far as
Southwark, but failed to get across London Bridge or defeat the Londoners. He eventually crossed the River Thames at
Wallingford, pillaging the land as he went. Rather than continuing the war,
Edgar the Ætheling,
Edwin of Mercia and
Morcar of Northumbria surrendered at
Berkhamsted. William granted the citizens of London a charter in 1075; the city was one of a few examples of the English retaining some authority. The city was not covered by the
Domesday Book. William built three castles around the city, to keep Londoners subdued: •
Tower of London, which is still a major establishment. •
Baynard's Castle, which no longer exists but gave its name to a city ward. •
Montfichet's Tower or Castle on
Ludgate Hill, which was dismantled and sold off in the 13th century. Around 1132 the City was given the right to appoint
its own sheriffs rather than having sheriffs appointed by the monarch. London's chosen sheriffs also served as the sheriffs for the county of
Middlesex. This meant that the City and Middlesex were regarded as one administratively for addressing crime and keeping the peace (not that the county was a dependency of the city). London's sheriffs continued to serve Middlesex until the county was given its own sheriffs again following the
Local Government Act 1888. By 1141 the whole body of the citizenry was considered to constitute a single community. This '
commune' was the origin of the
City of London Corporation and the citizens gained the right to appoint, with the king's consent, a mayor in 1189, and to directly elect the mayor from 1215. From medieval times, the City has been composed of
25 ancient wards, each headed by an
alderman, who chairs
Wardmotes, which still take place at least annually. A
Folkmoot, for the whole of the City held at the outdoor cross of
St Paul's Cathedral, was formerly also held. Many of the medieval offices and traditions continue to the present day, demonstrating the unique nature of the City and its
Corporation. In 1381, the
Peasants' Revolt affected London. The rebels took the City and the Tower of London, but the rebellion ended after its leader, Wat Tyler, was killed during a confrontation that included Lord Mayor
William Walworth. In 1450, rebel forces again occupied the City during
Jack Cade's Rebellion before being ousted by London citizens following a bloody battle on London Bridge. In 1550, the area south of London Bridge in
Southwark came under the control of the City with the establishment of the ward of
Bridge Without. File:DeathWatTyler.jpg|A pivotal event during the
Peasants' Revolt, 1381: their leader
Wat Tyler is stabbed by
William Walworth, Lord Mayor. File:Great Fire London.jpg|The 1666
Great Fire as depicted in a 17th-century painting: it shows
Old London Bridge at left, churches, houses, and the
Tower of London at right, as seen from a boat near Tower Wharf File:Great Fire of London Map.png|Map showing the extent of the Great Fire of London, which destroyed nearly 80% of the City The city was burnt severely on a number of occasions, the worst being in 1123 and in the
Great Fire of London in 1666. Both of these fires were referred to as
the Great Fire. After the fire of 1666, a number of plans were drawn up to remodel the city and its street pattern into a
renaissance-style city with planned urban blocks, squares and boulevards. These plans were almost entirely not taken up, and the medieval street pattern re-emerged almost intact.
Early modern period In the 1630s the Crown sought to have the Corporation of the City of London extend its jurisdiction to surrounding areas. In what is sometimes called the "great refusal", the Corporation said no to the King, which in part accounts for its unique government structure to the present. By the late 16th century, London increasingly became a major centre for banking, international trade and commerce. The
Royal Exchange was founded in 1565 by Sir
Thomas Gresham as a centre of commerce for London's merchants, and gained Royal patronage in 1571. Although no longer used for its original purpose, its location at the corner of
Cornhill and
Threadneedle Street continues to be the geographical centre of the city's core of banking and financial services, with the
Bank of England moving to its present site in 1734, opposite the Royal Exchange. Immediately to the south of Cornhill,
Lombard Street was the location from 1691 of
Lloyd's Coffee House, which became the world-leading insurance market. London's insurance sector continues to be based in the area, particularly in
Lime Street. In 1708,
Christopher Wren's masterpiece,
St Paul's Cathedral, was completed on his birthday. The first service had been held on 2 December 1697, more than 10 years earlier. It replaced the original St Paul's, which had been completely destroyed in the Great Fire of London, and is considered to be one of the finest cathedrals in Britain and a fine example of
Baroque architecture.
Growth of London The 18th century was a period of rapid growth for London, reflecting an increasing national population, the early stirrings of the
Industrial Revolution, and London's role at the centre of the evolving
British Empire. The urban area expanded beyond the borders of the City of London, most notably during this period towards the
West End and Westminster. Expansion continued and became more rapid by the beginning of the 19th century, with London growing in all directions. To the
East the
Port of London grew rapidly during the century, with the construction of many docks, needed as the Thames at the City could not cope with the volume of trade. The arrival of the railways and the
Tube meant that London could expand over a much greater area. By the mid-19th century, with London still rapidly expanding in population and area, the City had already become only a small part of the wider metropolis.
19th and 20th centuries An attempt was made in 1894 with the
Royal Commission on the Amalgamation of the City and County of London to end the distinction between the city and the surrounding County of London, but a change of government at Westminster meant the option was not taken up. The City as a distinct
polity survived despite its position within the London conurbation and
numerous local government reforms. Supporting this status, the city was a special
parliamentary borough that elected four members to the
unreformed House of Commons, who were retained after the
Reform Act 1832; reduced to two under the
Redistribution of Seats Act 1885; and ceased to be a separate constituency under the
Representation of the People Act 1948. Since then the city is a minority (in terms of population and area) of the
Cities of London and Westminster. (pictured 1896) dominated the skyline of the City for centuries. Its current structure by
Christopher Wren was completed in 1706 after its medieval predecessor burned with much of the City in the Great Fire of 1666. The City's population fell rapidly in the 19th century and through most of the 20th century, as people moved outwards in all directions to London's vast
suburbs, and many residential buildings were demolished to make way for office blocks. Like many areas of London and other British cities, the City fell victim to large-scale and highly destructive aerial bombing during
World War II, especially in
the Blitz. Whilst St Paul's Cathedral survived the onslaught, large swathes of the area did not and the particularly heavy raids of late December 1940 led to a
firestorm called the
Second Great Fire of London. There was a major rebuilding programme in the decades following the war, in some parts (such as at the Barbican) dramatically altering the urban landscape. But the destruction of the older historic fabric allowed the construction of modern and larger-scale developments, whereas in those parts not so badly affected by bomb damage the City retains its older character of smaller buildings. The street pattern, which is still largely medieval, was altered slightly in places, although there is a more recent trend of reversing some of the post-war modernist changes made, such as at
Paternoster Square. The City suffered terrorist attacks including the
1993 Bishopsgate bombing (
IRA) and the
7 July 2005 London bombings (
Islamist). In response to the 1993 bombing, a system of road barriers, checkpoints and surveillance cameras referred to as the "
ring of steel" has been maintained to control entry points to the City. The 1970s saw the construction of tall office buildings including the 600-foot (183 m), 47-storey
NatWest Tower, the first skyscraper in the UK. By the 2010s, office space development had intensified in the City, especially in the central, northern and eastern parts, with skyscrapers including
30 St. Mary Axe ("the Gherkin"'),
Leadenhall Building ("the Cheesegrater"),
20 Fenchurch Street ("the Walkie-Talkie"), the
Broadgate Tower, the
Heron Tower and
22 Bishopsgate. The main residential section of the City today is the
Barbican Estate, constructed between 1965 and 1976. The
Museum of London was based there until December 2022 (it is due to reopen in West Smithfield in 2026), whilst a number of other services provided by the corporation are still maintained on the Barbican Estate. ==Governance==