Complex sentence: The miner's licence or sandstormer's licence was the colonial government's response to the need to provide infrastructure including policing during the Australian gold rushes in 1851 first Australian mining laws were enacted in 1851.
Split into simpler sentences: The miner's licence or sandstormer's licence was the colonial government's response to the need to provide infrastructure including policing during the Australian gold rushes. The first Australian mining laws were enacted in 1851.