The voluntary associations of workers seeking labor reforms are called unions.
Explanation:
The industry was constantly growing, and more and more profit was made by the factories and the factory owners. The laborers though were in a status quo situation. Despite the factories becoming stronger and stronger, and more and more money flocking in, their wages were not rising. Also, very often the laborers were badly treated, intimidated, and forced to work more than they were supposed to. This all resulted in revolt among the laborers, which led to the formation of unions.
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