While the California one started in 1848, the first one in Australia didn't begin until May, 1851. What are we referring to?

Following the mass evacuation of Australians to California for the gold rush in 1848, the New South Wales government gained approval for the exploitation of mineral resources, offering rewards for gold sources in the country. As a result, the Australian gold rushes began just a few years later in 1851 and continued until around 1914.

Asked by Rachel Bortles · Last updated 4 years ago · 2.6K views · SOURCE