1982
The Olympic 400m men freestyle record is 3:40.59 by Ian Thrope.
Oscar Pistorius is the first double amputee runner to take part in the Olympic Games. He is competing in the 400m and the 4 x 400m relay races.
The 400m relay is the fast way of saying "4x100 meter relay".
400m
46.06
Olympic Record 400m Individual Medley 2008 Beijing Olympics Michael Phelps (USA) August 9, 2008 Time: 4:03.84
At Olympic level, 36 inches
400m hurdles
On a 400m track - 200m, 400m, 800m, 4x100m, 4x400m (and other non-Olympic distance relays)
You mean a 4x400m relay? Basically it means that you have four people in a relay, and each person runs 400 meters once. :)
Modern Olympic Tracks are 400m, Ancient Tracks are 440 yards
Alberto Juantereno from Cuba won the 400m and 800m at the Montreal Olympic Games in 1976.