teams kick around a ball made of possum fur. In the appendix of Dawson's book, he lists the word Min'gorm for the game in the Aboriginal language Chaap Wuurong. Professor Jenny Hocking of Monash University and Nell Reidy have also published eyewitness accounts of the game having been played in the area in which Tom Wills grew up. In his exhaustive research of the first four decades of Australian rules football, historian Mark Pennings "could not find evidence that those who wrote the first rules were influenced by the Indigenous game of Marngrook". Melbourne Cricket Club researcher Trevor Ruddell wrote in 2013 that Marn Grook "has no causal link with, nor any documented influence upon, the early development of Australian football." Chris Hallinan and Barry Judd describe the historical perspective of the history of Australian Rules as Anglo-centric, having been reluctant to acknowledge the Indigenous contribution. They go on to suggest this is an example of white Australians struggling to accept Indigenous peoples "as active and intelligent human subjects". Comparisons with Australian rules football Advocates of these theories have drawn comparisons in the catching of the kicked ball (the mark) and the high jumping to catch the ball (the spectacular mark) that have been attributes of both games. However, the connection is speculative. For instance spectacular high marking did not become common in Australian rules football until the 1880s. Marn Grook and the Australian rules football term "mark" Some claim that the origin of the Australian rules term mark, meaning a clean, fair catch of a kicked ball, followed by a free kick, is derived from the Aboriginal word mumarki used in Marn Grook, and meaning "to catch". The application of the word "mark" in "foot-ball" (and in many other games) dates to the Elizabethan era and is likely derived from the practice where a player marks the ground to show where a catch had been taken or where the ball should be placed. The use of the word "mark" to indicate an "impression or trace forming a sign" on the ground dates to . In popular culture Due to the theories of shared origins, marn grook features heavily in Australian rules football and Indigenous culture. A documentary titled Marn Grook, directed by Steve McGregor, was released in 1996. In 2002, in a game at Stadium Australia, the Sydney Swans and Essendon Football Club began to compete for the Marngrook