What is mainly the effect of the author mentioning the state of the union in the first line of the address?.

"To emphasize the historic nature of the tragedy that occurred" is mainly the effect of the author mentioning the state of the union in the first line of the address.What is union?Workers who band together and use their collective power to have a voice in the workplace form a union. Workers can negotiate with employers about pay, benefits, workplace health and safety, job training, and other work-related issues from a position of strength through their union. An important part of the workplace is played by unions. Their primary responsibilities include serving as employee representatives in workplace conflicts and bargaining representatives in negotiations. Learn more about: joining a union. Trade Union Types: There are four main types: Federations, General Unions, Industrial Unions, and Craft Unions. Unions fight for the rights of their members. As strong representatives of the workforce, they try to obtain various incentives and advantages for employees.To know more about union,https://brainly.com/question/749754?referrer=searchResults#SPJ4