Complex sentence: In the early 1900s it was commonly believed that the Indigenous population of Australia was going to become extinct.Population shrunk from 1,250,000 in 1788 to 50,000 in 1930.
Split into simpler sentences: In the early 1900s it was commonly believed that the Indigenous population of Australia was going to become extinct. The population shrunk from 1,250,000 in 1788 to 50,000 in 1930.