The previous world record of 12.21s was set by Bulgarian Yordanko Donkova on Aug, 20, 1988.
4. LOOK AT HER FACE WHEN SHE SEES HER TIME. Pretty much says it all.
5. Just WINNING the race was a huge deal for Harrison, let alone setting a world record.
Last month, after a disappointing showing at the Olympic Trials, Harrison failed to qualify for a spot on the US team.
In London, she beat all three of the women who will be representing the United States in the 100m hurdles in Rio.