Complex sentence: HARS was initially formed in 1979 by a group of aviation enthusiasts wanting to preserve Australia's aviation history, was incorporated in 1988, and achieved tax deductible gift recipient status in 1991.
Split into simpler sentences: HARS was initially formed in 1979 by a group of aviation enthusiasts wanting to preserve Australia's aviation history. The society was incorporated in 1988, and achieved tax deductible gift recipient status in 1991.