Sunderland Association Football Club was founded in 1879 in Sunderland, Tyne and Wear, in the north-east of England. Though the club began as a teachers' association team, it quickly opened its doors to all players and joined the Football League in 1890, establishing itself as one of the dominant forces of the Victorian era.
In the early years, Sunderland earned the nickname the "Team of All Talents" from Football League founder William McGregor, and they backed up that praise with three league titles in four seasons between 1892 and 1895. Two further First Division championships followed in 1902 and 1913, and a sixth in 1936 — their last top-flight title to date — when they also won the FA Charity Shield. The club added FA Cup glory the very next year, beating Preston North End 3–1 at Wembley.
The most celebrated cup moment in Sunderland's history came in 1973, when the club — then a Second Division side — defeated Don Revie's Leeds United 1–0 in one of the great FA Cup final upsets. Goalkeeper Jimmy Montgomery and scorer Ian Porterfield became legends that day, and the victory remains the defining image of modern Sunderland.
Since the 1990s, Sunderland have experienced a turbulent cycle of promotions and relegations between the Premier League and the lower divisions. Their move to the 49,000-capacity Stadium of Light in 1997 signalled ambition, but sustained top-flight stability has proved elusive.
The club's fiercest rivalry is the Tyne–Wear derby against Newcastle United, contested since 1898, which divides the north-east along deeply tribal lines. Sunderland play in red and white stripes — colours as recognisable in the region as the rivalry itself.