Final answer:
Unsafe and unsanitary work conditions in the early 1900s led to the development of labor laws and regulations.
Step-by-step explanation:
Unsafe and unsanitary work conditions in the early 1900s were a problem leading to the development of labor laws and regulations. The conditions in factories, mines, and other workplaces were extremely hazardous and resulted in frequent injuries and health issues for workers.
The lack of safety precautions, low wages, and harsh working conditions at that time generally led to a movement for workers' rights and the establishment of labor laws to protect workers. Examples of labor laws developed in response to unsafe work conditions include the establishment of minimum wage, maximum working hours, and workplace safety regulations.