What It Means: Sweynesse, as it was called in the 12th century, from Old Norse Sveinnsey, Sveinn's Island. But to the Welsh it's Abertawe, the mouth of the Tawe river.  

Why It's There: a castle as the Normans moved into Wales but in the 19th century found to be built on a mountain of copper. If Victorian Middlesbrough was Ironopolis, Swansea was Copperopolis.

Why They're There: Swansea Town, formed 1912 by those who wanted to kick and head a ball rather than each other between throwing it. Became City when Swansea did in 1969, with suspiciously perfect timing for Charles' investiture as Prince of Wales. One of a handful of clubs run by a supporters trust (and the only one in the Premier League) until this season when they sold out to a US consortium - who are now on their third manager.

The Field of Dreams: the Vetch Field (1912-2005) was a vegetable patch at the local gasworks and uniquely overlooked by the prison. Now turned full circle and used as allotments. The Liberty Stadium, second-smallest in the Premier League after Bournemouth, is on the site of a copper mine called White Rock, which many felt would have been the ideal name. Liberty is not a utopian ideal but a property company, with another typical example of modern British thinking - a railway line within yards, but no station. Shared by Ospreys rugby club, who were the first to fill it. The next will be Take That in June.    

First Footing: September 1925. Swansea had just been promoted from Division Three South for the first time, Boro halfway through a three-year exile from Division One.

Local Heroes: Ivor Allchurch (note the statue outside); Cliff Jones; Wilf Milne (586 games in the 20's and 30's),"Wales's John Toshack," Division Three to Division One in three years as manager; Brendan Rodgers, took them into the Premier League; Scott Sinclair, whose hat-trick in 2011 Play Off final sealed it; Michael Laudrup, won 2013 League Cup; Doug Sharpe, saved the club from final winding-up order in 1986; and Marvin Emnes, immortality after the only goal at Cardiff while on loan from Boro, their only win there in 20 years.

Local Villains: "Cardiff's John Toshack," took them all the way back down to Division Three; The Petty Group, Aussie Rules consortium who bought the club in 2001, sacked 15 players and provoked fan uproar; Kevin Cullis, manager in 1996 until the players just ignored him and was sacked - after just six days in the job. Whoever decided to release the teenage John Charles without letting him near the first team; But then his only previous one was at Cradley Town youth team. But above all Cardiff City, 105 games of bitterness including a 1993 riot and away fan ban. Amazingly neither side has ever done the double over the other. South Wales Police reputedly have a contingency plan in the same file as their nuclear attack response.

High Point: Division Four to Division One in three years in 1981; winning the 2013 League Cup and qualifying for Europe via an English tournament after seven seasons in Europe via 10 Welsh Cup wins (or even losing the final to an English neighbour like Chester or Shrewsbury); finishing sixth in the old First Division in 1982 - and it would have been third had they not lost to Boro in their final home game.

Low Point: seven seasons in Division Four in the 1960's and 70's, having to apply for re-election in 1975 (finishing below Darlo so therefore inevitable); losing 80 to Monaco in the 1981 Cup-Winners' Cup; dropping from Division One to Division four in three years from 1983.

Boro Highs: 1-0 (May 1927), last of the record 122 goals; 4-1 (October 1957), the biggest league win; 5-0 (January 1981) dashing Match of the Day FA Cup giant-killing hopes from team second in Division Two; 2-1 (May 1982), but only for an hour or so - see below; 3-0 (August 2009), Premier League here we come, straight back up.......

Boro Lows: 0-4 (September 1925); 0-1 (October 1954), 9th loss in 10 games, lowest league position in history; 2-5 (November 1958); 2-1 (May 1982), 

Hello to: David Currie (May 1982); Gary Gill (April 1984); Don Ratcliffe (September 1963).

Goodbye to: Dick Neal (March 1963); Andy Crawford (April 1982).

Boro Hero: George Camsell (May 1927) last of his 63 goals that season; Mel Nurse (March 1965), Swansea born and bred, scored Boro's winner, which kept them up, and sent Swansea down. Terry Cochrane (January 1981) legendary overhead kick in 5-0 win that ended up on the MOTD titles (and Mike Angus's wasn't bad either); the Football League, paid for coaches to take Boro fans to the 2012 Capital One Cup tie after 12 successive away draws.

Boro Villain: various mid-1980's Swansea directors. One reason the Football League made an example of Boro in 1986, moving the goalposts and eventually insisting all debts were repaid 100%, was a succession of embarrassing winding-up orders against the then dying Swans only months earlier.    

Hero and Villain: Seb Hines (December 2012), one-man ball magnet in defence in Capital One Cup quarter-final, until the desperately unlucky own goal nine minutes from time.

Tees/Tawe Hero: Mel Nurse, joined Boro from Swansea in 1959, once arrested on suspicion of being a Great Train Robber as he was driving his Jag down Linthorpe Road, and later rejoined Swansea just after his goal relegated them. Saved the club in 2001 by clearing its debts, buying it from despised Australian owners and transferring it to a supporters' trust.     

Typical Boro 1: 0-4 (September 1925), Boro were top with 15 goals in four games, Swansea newly promoted, this was their first-ever home win in Division Two; 2-1 (May 1982), out of the bottom three in final away game and celebrations on the coach home. But two of the teams below them had to play each other and one was therefore guaranteed to go above Boro. They were already down but didn't know it.

Anything But Typical Boro: 36 goals in 21 visits to Swansea is very nearly Boro's best return at any club. 32 in 17 at Rotherham just beats it. 

Your Boys Took One Hell of a Beating: Keith Allen, Harry Secombe, Russell T Davies, a surprising slice of the Metropolitan (though certainly not all liberal) Elite - Michael Heseltine, Michael Howard, Ian Hislop, Martin Amis and Rowan Williams;   Welsh rugby all-time greats like the Quninells and Moriartys, Ieuan Evans, Mervyn Davies and Shane Williams; and among the legion of Joneses, Robert and Catherine. He, better known by his middle name Brydon, is on the board of the club's charitable foundation; she, also better known through her middle name, Zeta, was once voted the country's sexiest football fan, though the seemingly exotic Zeta was a local cargo ship. And of course Dylan Thomas, whose most famous words could be the Boro team talk: Do not go gentle into that good night, Rage, rage against the dying of the light.