Original sentence: Australia has a rich history of unemployed workers' struggles: from the 1840's Depression to the 2008-9 Great Recession, unemployed workers have organised themselves and fought to have their grievances heard and their demands addressed.With somewhere between 30-100 unemployed workers' groups emerging at the end of the 1970's alone, out of work workers have continuously been "active agents" in agitating to change an socioeconomic system that some say creates systemic, structural unemployment and disproportionately punishes them
Edited sentence: Australia has a rich history of unemployed workers' struggles: from the 1840's Depression to the 2008-9 Great Recession, unemployed workers' have organised themselves and fought to have their grievances heard and their demands addressed.With somewhere between 30-100 unemployed workers' groups emerging at the tail end of the 1970's alone, out of work workers' have continuously been active agents in agitating to change an socioeconomic system that creates systemic, structural unemployment and disproportionately punishes them