Final answer:
The high jump event in the Olympics was forever changed by the introduction of the 'Fosbury Flop' in the 1968 Games, an innovative technique developed by D Fosbury that involves going over the bar back-first.
Step-by-step explanation:
The Olympic event that was changed forever in 1968 by the introduction of the "Fosbury Flop" is the high jump. This technique was revolutionized by American athlete D Fosbury during the 1968 Mexico City Olympics. Before Fosbury, athletes traditionally used techniques such as the straddle method or the scissors jump to clear the bar. However, Fosbury introduced a new way of jumping - by going over the bar back-first, which allowed for a higher clearance.
The Fosbury Flop had a significant impact on the sport of high jumping and quickly became the dominant technique used by athletes globally. It demonstrated how a creative approach could disrupt traditional methods and lead to unprecedented success. D Fosbury's innovative method not only won him an Olympic gold medal but also redefined high jump technique for future generations of athletes.