#OnThisDay in 2008, The US team of #MichaelPhelps, #AaronPeirsol, Brendan Hansen, and Jason Lezak wins the 4 x 100 m medley relay at the Beijing Olympics in a world record time of 3:29.34; Phelps's 8th gold medal of the Games breaks Mark Spitz's 1972 record of 7.