Eric Liddell of Great Britain in a time of 47.6 seconds which set a world record.
Cathy Freeman won 1 gold medal at the Olympic Games (400 meter dash in 2000), 2 gold medals at the World Championships (400 meter dash in 1997 and 1999), and 4 gold medals at the Commonwealth Games (4x100 meter relay in 1990, 200 meter dash and 400 meter dash in 1994, and 4x400 meter relay in 2002).
Uwe Daßler
Men: Michael Johnson Women: Cathy Freeman
Yes. She won silver in the 400 meter run at the 1996 Games in Atlanta and gold in the 400 meter run at the 2000 Games in Sydney.
Yes, Rebecca Adlington won gold in the 400 and 800 meter swim.
Michael Johnson
Men: Michael Johnson Women: Cathy Freeman
The first gold medal won by an Indian woman was at the 1970 Asian Games in Bangkok when Kamaljeet Sandhu won the 400 meter run.
Michael Phelps won the men's 400 meter individual medley gold medal in the 2008 Summer Olympics.
Australia's Betty Cuthbert's last Olympic medal was gold in women's 400 meter run at the 1964 Games in Tokyo.
Park Taehwan (Korea) won the gold medal in the men's 400 meter freestyle swimming in the 2008 Summer Olympics.
Yes. George Orton (born in Strathroy, Ontario) won the 2500 meter steeplechase event. He also won a bronze medal in 400 meter hurdles.