Final answer:
During the late nineteenth century in Ontario, worker safety standards were likely implemented. This topic is framed within a larger context of the Industrial Revolution and subsequent labor laws developed to protect workers in hazardous industries.
Step-by-step explanation:
The question refers to the important safety standards established in Ontario during the late nineteenth century. Given the references and information provided, it's clear that, as with many parts of the world undergoing industrialization, Ontario also started focusing on safety standards, particularly in the workplace.
The foundation of workplace safety standards really comes from the Industrial Revolution, which introduced new and dangerous work conditions. Gradually, laws protecting workers' rights and safety came into place like the Factory Act of 1833 in the United Kingdom, followed by numerous others.
Around the same time, Industrialization in Canada also began in the 1850s. Even though the specific safety acts passed in Ontario in the late 19th century aren't mentioned, it's plausible to infer that as an Industrial centre, Ontario too would have passed legislation aimed at worker safety during this period. Efforts would have likely targeted the textile, brewing, steel production, and other factories operating at the time. The implementation of safety standards in these hazardous workplaces was a significant step in history for labor rights.
Learn more about Workplace Safety Laws