Asia, published between 1552–1615. Mendonça appears in Barros' account with instructions to search for the legendary Isles of Gold. However, Mendonça and other Portuguese sailors are then described as assisting with the construction of a fort at Pedir (Sumatra) and Barros does not mention the expedition again. McIntyre nominated Cristóvão de Mendonça as the commander of a voyage to Australia c. 1521–1524, one he argued had to be kept secret because of the 1494 Treaty of Tordesillas, which divided the undiscovered world into two-halves for Portugal and Spain. Barros and other Portuguese sources do not mention a discovery of land that could be Australia, but McIntyre conjectured this was because original documents were lost in the 1755 Lisbon earthquake, or the official policy of silence. Most proponents of the theory of Portuguese discovery of Australia have supported McIntyre's hypothesis that it was Mendonça who sailed down the eastern Australian coast and provided charts which found their way onto the Dieppe maps, to be included as "Jave la Grande" in the 1540, 1550s and 1560s. McIntyre claimed the maps indicated Mendonça went as far south as Port Fairy, Victoria; Fitzgerald claims they show he went as far as Tasmania; Trickett states as far as Spencer Gulf in South Australia, and New Zealand's North Island. Claims of Portuguese words in Aboriginal Australian languages In the 1970s and 1980s, linguist Carl Georg von Brandenstein, approaching the theory from another perspective, claimed that 60 words used by Aboriginal people of the Australian north-west had Portuguese origins. According to Peter Mühlhäusler of the University of Adelaide: Von Brandenstein also claimed the Portuguese had established a "secret colony... and cut a road as far as the present day town of Broome" and that "stone housing in the east Kimberley could not have been made without outside influence". However, according to Nicholas Thieberger, modern linguistic and archaeological research has not corroborated his arguments. Mühlhäusler agrees, stating that "von Brandenstein's evidence is quite unconvincing: his historical data is speculative – the colonisation being clandestine, there are no written records of it and his claims are not supported by the linguistic evidence he cites." Other purported textual and cartographic evidence In contemporary Australia, reports of textual and cartographic evidence, of varying significance, and occasionally artifacts are sometimes cited as likely to "rewrite" Australian History because they suggest a foreign presence in Australia. In January 2014, a New York Gallery