On 26 August 1835, Governor Bourke issued a
Proclamation which formally declared that agreements such as Batman's Treaty were "void and of no effect as against the rights of the Crown" and declared any person on "vacant land of the Crown" without authorisation from the Crown to be
trespassing. Also, Batman had purchased the lands for the Association, and not for
the Crown. The validity of the treaty has been widely disputed. It is possible that the marks which Batman claimed were the signatures of the eight
Wurundjeri elders were instead made by one of the five Aboriginal men he had brought with him from
Parramatta, since they resemble marks commonly used by Aboriginal people from that area. Furthermore, since neither Batman, the Sydney Aboriginal men or the Wurundjeri men spoke anything approaching the same language, it is almost certain that the elders did not understand the treaty, instead probably perceiving it as part of the series of gift exchanges which had taken place over the previous few days amounting to a
tanderrum ceremony which allows temporary access to and use of the land. In any case, the European system of understanding
property was entirely alien to almost all Aboriginal peoples. Nevertheless, the treaty has been praised as the only documented attempt to reach an agreement for land use between white colonists and the local Aboriginal people. The treaty is significant more broadly as it is the first and only documented time when Europeans in Australia have negotiated their presence with Aboriginals. Batman maintained until his death in 1839 that the treaty was valid. Some historians continued to assume that the treaty was a forgery, however Aboriginal elder
Barak, who was present at the signing of the treaty as a boy, states that Batman, with the aid of
New South Wales Aboriginal peoples, did in fact participate in a signing ceremony. ==See also==