The Adelaide Mosque was built in 1888, and is the oldest major city mosque in Australia. Its original four minarets were added in 1903. Muslims from as far away as Broken Hill and Kalgoorlie gathered at least once a year at the Adelaide Mosque, usually for the Fast of Ramadan. In 1890 it was reported that 80 Afghans were present to observe this important festival.
Islam was introduced to Australia in the 1860s with the arrival of the first cameleers, brought to Australia to handle recently introduced camel teams. Thomas Elder brought 124 camels and 31 handlers to South Australia in 1865, establishing a stud at Beltana. The handlers came to be known as ‘Afghans’ or ‘Syrians’ although they were actually from various countries, including Afghanistan, Pakistan and Iran (although of course Afghanistan and Pakistan did not exist as countries in their own right at the time, being part of the Mughal Empire until 1858).
http://en.wikipedia.org/wiki/Central_Adelaide_Mosque