 Over the next 30 years, football gained popularity in the Netherlands and the late 1890s and early 1900s saw the foundation of many new clubs, notably Sparta Rotterdam in 1888, which is the oldest professional football club in the country, AFC Ajax in 1900, Feyenoord Rotterdam in 1908, and PSV Eindhoven in 1913.The Royal Dutch Football Association (KNVB) was founded on December 8, 1889 and joined FIFA in 1904 as one of the founding members alongside the Football Associations of France, Belgium, Denmark, Spain, Sweden, and Switzerland.Professional football was introduced in 1954, with the establishment of the Dutch Professional Football Association ("Nederlandse Beroeps Voetbal Bond", or NBVB).