What became a strategy that workers used in order to seek better working conditions?

Many workers used strikes as a means to receive better working conditions. A strike is when a group of employees refuse to do work for a specific business/company. In this case, the employees refuse to go back to work until their demands are met. The goal is to hurt the company, as they will lose money due to the fact that they cannot open for business or generate any new products.

During the late 1800's and early 1900's workers used this strategy to fight for better working conditions such as: shorter work days, better pay, safer working conditions, etc.