<prompt> Qedela umusho olandelayo: UJans Koster owazalwa ngo-1938 ungumbhukudi waseNetherlands osethathe umhlalaphansi. Wathola indondo yegolide emncintiswaneni  <response>: 1958 European Aquatics Championships 400 m futhi wabeka amarekhodi amabili aseYurophu nambili emhlabeni ku-1500 m ngo-19561957. Ngo-9 Mashi 1960 washada noBen Hulsegge. 