Sparta Rotterdam, founded on 1 April 1888 as a cricket club by a group of teenage students, is the oldest professional football club in the Netherlands. The team adopted its distinctive red-and-white colours following a visit by a delegation to English club Sunderland in the late 19th century, giving rise to one of its nicknames, De Rood-Witte Gladiatoren (The Red-White Gladiators).
The most successful period in Sparta's history came in the first two decades of the 20th century, when the club won the Dutch national championship six times — in 1909, 1911, 1912, 1913 and 1915. Following this run of success, the club built a new stadium, its main stand accompanied by a clubhouse modelled on the medieval Kasteel Ter Spangen fortress. This gave the ground, opened in 1916, its enduring name, Het Kasteel (The Castle), and the club's players and supporters are still known today as De Kasteelheren — the Lords of the Castle.
After decades without further honours, Sparta returned to the summit of Dutch football only in the late 1950s, claiming its sixth and, to date, final league title in the 1958–59 season, which earned the club its debut appearance in the European Cup the following season. A key figure in that title-winning side was winger Tinus Bosselaar, a Sparta product who returned to Spangen after a spell at rival Feyenoord to lead the club to glory. In later decades a young Louis van Gaal also wore Sparta's colours as a player, before beginning the coaching career that made him one of the most celebrated managers in world football.
Het Kasteel, thoroughly restored in the late 1990s, remains one of the most distinctive stadiums in the Netherlands and hosted matches during the 1928 Olympic Games. Alongside Feyenoord and Excelsior, Sparta forms one of Rotterdam's three professional football clubs, and its identity remains firmly rooted in the working-class Spangen district it has called home for more than a century.