Gunder Hägg was a Swedish runner and multiple world record breaker of the 1940s. He set over a dozen middle distance world records at events ranging from 1500 to 5000 meters, including three at both the 1500 meters and the mile, one at 3000 meters and one at 5000 meters. Gunder Hägg (Sweden) set the men's mile world record of 4:06.2 in Gothenburg on July 1, 1942. It stood 9 days, until Arne Andersson's 4:06.2 on July 10, 1942 (equalling it). Wiki link