Workers uniting to make things about their workplace better than before, or to short work time.
Origin in united states
Labor unions started booming in the 19th century and played an important role for independence, and is still happening today to make work places better. It all started with the NLU (National Labor Union). soon after life wages increased after the civil war so thing were more expensive.
Labor union social problems
people were unhappy about their workplace so they demanded that they will get payed better and be more safe.