The championships featured only a senior men's race from 1903 to 1961, at which point an under-21s event was introduced.

The event was broadcast live to millions of people on television worldwide and introduced the boy to a whole new audience.

The event was introduced in a daily strip which ran on November 15, 1937.

Cross-country events, both for the individual and the team, were introduced.

During the past ten years unique new co curricular events were introduced by this section.

The event was introduced by the Jockey Club in 1894.

The first event was introduced by a loud and persistent hooting just behind them.

Two new events were introduced for women: pole vault and hammer throw.

The event was introduced in 1968, and until 1992 both men and women were allowed to participate.

The event was first introduced for women in 2009.