Fair catch kick rugby have eliminated the rule; rugby league abolished the goal from mark in 1922, and rugby union removed it in 1977. Australian rules football has retained the rule, and it is a vital part of the Australian game; a "fair catch" of a ball kicked more than 15 metres in the air is called a "mark", and the player making the mark is then awarded a free kick. The fair catch kick has been present in the National Football League (NFL) rulebook since the league's inception, and also remains in the National Federation of State High School Associations (NFHS) rulebook.
Comparison of American football and rugby union the only competition between national teams is the IFAF World Championship, which is not considered a major event when compared to the Olympic Games, FIFA World Cup and the Rugby World Cup. The dimensions of an American football field are measured in United States customary units (essentially the same as British Imperial units). Rugby union originally marked and quoted its measurements in Imperial but converted to Metric units in 1977. When these conversions were made the measurements were generally adjusted to the closest round-number measurement in the metric system. Although both codes are played on similar sized rectangular fields, the