By Tim Lambert
Early Swansea
Swansea was once called Sweins eg or ey, which means Swein’s Island. The island stood at the mouth of the River Tawe. Who Swein was is not known for sure but he may have been a Norseman who built a fort on the island about 1000 AD and used it as a base for raiding the Welsh coast.
The town of Swansea was founded in the early 12th century when the Normans conquered the area. The Norman lord built a wooden castle on the site of Worcester Place. (It was rebuilt in stone in the early 13th century). A town soon grew up by the castle. The garrison of Swansea castle provided a market for the townspeople’s goods. Many of the townspeople were English immigrants.
At some time between 1158-84, Swansea was given a charter (a document granting the townspeople certain rights). King John gave Swansea another charter in 1215.
Swansea in the Middle Ages
By the 13th century, Swansea was a flourishing town although it would seem tiny to us with a population of about 1,000. However, towns were very small in those days, especially Welsh towns.
Swansea was probably fortified with a ditch and an earth rampart with a wooden stockade. In the early 14th century, this was replaced by stone walls. However, the defences did not prevent the Welsh from burning Swansea several times (the last time was in 1402 during the rebellion of Owain Glendower). Yet whenever this happened Swansea recovered.
In Medieval Swansea, the main industries were leather and wool. In Swansea wool was woven. It was then fulled, which means it was cleaned and thickened by being pounded in a mixture of water and clay. Wooden hammers worked by watermills pounded the wool. It was then ready for dyeing. There was also a shipbuilding industry in Swansea.
Leather and wool from Swansea were exported to England so were hides, butter, cheese, and grain. In Swansea, there was a weekly market. There were also 2 fairs. In the Middle Ages fairs were like markets but they were held only once a year. People would come from all over South Wales to attend a Swansea fair.
In the Middle Ages Swansea was run by an official called the Portreeve. By the 14th century, the Portreeve was assisted by 12 aldermen.
Like all towns Swansea was devastated by the Black Death of 1348-49 which may have killed half the population.
Swansea 1500-1800
In this period Swansea grew rapidly. It still only had a population of about 1,000 in the mid-16th century but it grew to about 2,000 by the mid-17th century. The port of Swansea grew busier and busier as coal mining in South Wales boomed. Increasing amounts of coal were exported from Swansea. By the 17th century, iron was also exported from Swansea.
Shipbuilding continued in Swansea. So did the wool weaving industry. Swansea was also noted for making gloves. By the 16th century, Swansea had 3 fairs rather than the 2 of the Middle Ages. In 1655 Cromwell said Swansea was ‘an ancient port town and populous, situated on the coast towards France, convenient for shipping and resisting foreign invasions’.
Swansea castle had been damaged by Owain Glendower in the 15th century. It was finally demolished by the parliamentarians in 1647 to prevent it from ever being used by the Royalists.
On the other hand, in 1682 a grammar school was founded in Swansea, and by 1750 Swansea probably had a population of about 3,000. It was a busy little port and market town. In 1771 Swansea gained its first bank and in 1785 its first theatre.
Swansea in the 19th century
In the late 18th century Swansea began to boom. From 1716 copper was smelted in Swansea. In 1755 a lead works opened. In 1764 a pottery plant was founded. Pottery became an important industry during the 19th century. From 1777 zinc was made in Swansea.
In the 19th century, Swansea became a centre of the metalworking industry. Vast amounts of zinc and copper were made there and then exported through the port. After 1845 tinplate was made in Swansea. (Steel covered in tin). By the late 19th century the tinplate industry was booming.
The port of Swansea also boomed during the 19th century. It was helped by the Swansea Canal, which made it easier to transport heavy raw materials to and from the port.
In 1791 a group of men called the Harbour Commissioners was formed with responsibility for the harbour. North Dock was built in 1852. It was followed by South Dock in 1859. In 1881 Prince of Wales Dock was built on the east bank of the Tawe.
Meanwhile, there was still a shipbuilding industry in Swansea in the 19th century but it was less important than the metalworking trades.
The population of Swansea grew rapidly during the 19th century. In 1801 it was 6,831 but by 1841 it was over 16,000. by the end of the century, it had passed 100,000. Like all 19th-century towns, Swansea was overcrowded, dirty, and unsanitary. There were epidemics of cholera in Swansea in 1832 and 1849.
Nevertheless, there were some improvements in Swansea in the 19th century. In 1808 a dispensary opened where the poor could obtain free medicines. In 1809 an Act of Parliament formed a body of men called the Paving Commissioners with responsibility for paving, cleaning, and lighting the streets.
In 1821 Assembly Rooms were built where the well-to-do could play cards and hold balls. In 1821 Swansea obtained gas street lighting.
Then in 1835 Swansea’s local government was reformed. Swansea was made a borough with a mayor. Swansea museum was founded in 1835. A general hospital was built in 1864. The first public library in Swansea opened in 1871 and Victoria Park opened in 1887.
Swansea in the 20th century
By 1901 Swansea had a population of 134,000 and it continued to grow rapidly during the 20th century.
Glynn Vivian Art Gallery opened in 1911. Meanwhile, in 1906 the first council houses were built in Swansea. More were built in the 1920s and 1930s as the council demolished slums. Many more were built after 1945 as well as a large number of private houses.
A new Guildhall was built in Swansea in 1934. However, Swansea suffered severely in the bombing raids of the Second World War. In all 387 people were killed in Swansea and the heart of the city was destroyed. It was rebuilt in the 1960s.
In the early 20th century the port of Swansea continued to flourish. Kings Dock was built in 1909. Queens Dock followed in 1920. At the beginning of the 20th century, the tinplate industry was booming. So were the steel and copper industries. However, they suffered severely in the depression of the 1930s and there was horrifically high unemployment in Swansea.
The economy of Swansea boomed again during the Second World War but after it ended the traditional metalworking industries nosedived. Coal mining in the Swansea area disappeared by the end of the 20th century. The council tried to diversify industry in Swansea by building new industrial estates including one at Fforestfach in the late 1940s and another at Cwndu in the 1960s.
Swansea is still a busy port. The South Dock closed in 1969. It was opened as a marina in 1982. From the 1920s oil was imported into Swansea. Oil was refined and the finished product was exported from Swansea. In 1969 a ferry service to Cork began.
In 1969 Swansea was made a city. A leisure centre was built in 1977. Also in 1977, a Maritime and Industrial Museum opened. (In 2005 it re-opened as Waterfront Museum). The Quadrant Shopping Centre opened in 1979. County Hall was built in 1984.
In the late 1980s, a shopping and leisure centre was built at Parc Tawe on the site of the North Dock. The centre included a bowling alley and cinema. Plantasia opened in 1990. Parc Tawe Centre was extended in 1997. Also in the 1990s Castle Square was redeveloped.
Swansea in the 21st century

In the 21st century, Swansea is still flourishing. The National Waterfront Museum opened in 2005. In 2020 the population of Swansea was 247,000.
Timeline of Swansea
c. 1000 The Vikings are believed to have built a fort at Swansea
Early 12th Century The Normans conquer this part of Wales and build a castle at Swansea. A town grows up in the shadow of the castle.
1158-84 At some point in this period Swansea is given a charter (a document giving the people certain rights)
1200 Swansea is a little town with a population of about 1,000
1402 Owain Glendower burns Swansea. However, the little town recovers and it is known for its wool and leather industries.
1647 Swansea Castle is demolished by the Parliamentarians
1650 Swansea has a population of about 1,000. Coal and iron are exported from Swansea
1716 Copper is first smelted at Swansea
1750 Swansea has a population of about 3,000
1764 A pottery plant is founded at Swansea
1771 Swansea gains its first bank
1777 Zinc is first made at Swansea
1785 Swansea gains its first theatre
1801 The population of Swansea is 6,831
1809 A body of men is formed with powers to pave, clean and light the streets of Swansea
1821 Swansea gains gas street lighting
1832 Swansea is struck by cholera
1835 Swansea Museum is founded
1841 The population of Swansea reaches 16,000
1845 Tinplate is made at Swansea
1849 Cholera strikes Swansea again
1852 North Dock is built
1859 South Dock is built
1864 A General Hospital is built in Swansea
1871 The first public library opens in Swansea
1881 Prince of Wales Dock is built
1887 Victoria Park opens
1901 The population of Swansea is 134,000
1906 The first Council Houses are built in Swansea
1909 Kings Dock opens
1911 Glynn Vivian Art Gallery opens
1920 Queens Dock opens
1934 A new Guildhall is built in Swansea
Second World War 387 people in Swansea are killed by German bombing
1969 South Dock closes. (It opens as a marina in 1982). A ferry service to Cork begins. Swansea is made a city.
1977 A Leisure Centre is built
1979 The Quadrant Shopping Centre opens
1984 County Hall is built
1990 Plantasia opens
1997 Parc Tawe Centre is extended
2005 National Waterfront Museum opens