As a result of the 1851 discovery of this in New South Wales & Victoria, Australia's population almost tripled by 1860
[DOC] [TLE] Australian gold rushes - Wikipedia [PAR] This is mainly because, prior to 1851, the colonial government of New South 
Wales (Victoria did not become a separate colony until 1 July 1851, and 
Tasmania... [DOC] [TLE] The immigration rush - SBS [PAR] The news of gold discoveries in Australia captured the imagination of the ...