______________ was the first industrial accident-related insurance program in the US.

The Workmen's Compensation Act was the first industrial accident-related insurance program in the United States. This legislation, introduced in the early 20th century, established a system in which workers who were injured on the job could receive compensation without needing to prove fault. The act was a significant milestone in labor rights, aimed at protecting workers and ensuring they had financial support in the event of work-related injuries.

Prior to this act, injured workers often had to rely on lawsuits to claim damages, which could be lengthy and costly. The Workmen's Compensation Act simplified the process by providing a no-fault system of compensation. This model eventually influenced how various forms of workers' compensation are structured across the country today, emphasizing the importance of workplace safety and the need for employers to take responsibility for the welfare of their employees.

Thus, while the Federal Employers' Liability Act and other federal acts play important roles in workers' rights and protections, it was the Workmen’s Compensation Act that directly introduced the concept of an insurance program specifically linked to industrial accidents.